diff --git a/data/heroes/blue/3/Bryggvir.yml b/data/heroes/blue/3/Bryggvir.yml
index bedbf6ef..1b5ad213 100644
--- a/data/heroes/blue/3/Bryggvir.yml
+++ b/data/heroes/blue/3/Bryggvir.yml
@@ -23,13 +23,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 153 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 153 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/vdreiVK.jpg
 dtReleased: "2025-08-26"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Goat Rider
 aetherPower: dodge
 lb1:
diff --git a/data/heroes/blue/4/Dain.yml b/data/heroes/blue/4/Dain.yml
index 041fe91d..7fdd85f0 100644
--- a/data/heroes/blue/4/Dain.yml
+++ b/data/heroes/blue/4/Dain.yml
@@ -25,13 +25,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 193 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 193 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/r2wMpaa.jpg
 dtReleased: "2025-05-16"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Siegemaster
 aetherPower: defense_up
 lb1:
diff --git a/data/heroes/blue/5/Andvari.yml b/data/heroes/blue/5/Andvari.yml
index fc3f7ce8..b2e324c1 100644
--- a/data/heroes/blue/5/Andvari.yml
+++ b/data/heroes/blue/5/Andvari.yml
@@ -11,7 +11,7 @@ health: 2243
 skill: Saga of Deliverance
 effects:
 - Destroys all Minions from all enemies and damages all Mega Minions.
-- Destroys all Fiends from all allies. This effect damages Mega Fiends.
+- Destroys all Fiends from all allies and damages all Mega Fiends.
 - All allies get a Firestorm Ward for 4 turns, that reduces incoming Special Skill
   damage by up to -1300. Reduces damage by additional 30% when the attacker is of
   the Nature element.
@@ -20,21 +20,21 @@ effects:
 types:
 - Minion Destroyer All
 - Fiend Destroyer All
-- Firestorm Ward
-- Mana Generation Buff
+- Firestorm Ward All
+- Mana Generation Buff All
 passives:
 - 'Empowered Resist Burn: This character is immune to status ailments that deal Burn
   damage and gains 450 boosted health and 5% mana each time they resist.'
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 309 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 309 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/MVPiXPz.jpg
 dtReleased: "2024-12-28"
-dtModified: "2026-04-28"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Oracle
 aetherPower: defense_up
 lb1:
@@ -51,10 +51,10 @@ costume:
   design: costume1
   bonuses: 13/13/13/5
   class: Cleric
-  power: 1287
-  attack: 1257
-  defense: 1320
-  health: 2518
+  power: 1305
+  attack: 1280
+  defense: 1344
+  health: 2541
   skill: Saga of Restoration
   effects:
   - Destroys all Minions from all enemies and damages Mega Minions.
@@ -76,13 +76,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 370 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 377 Burn damage, and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/MIeBXAK.jpg
   dtReleased: "2026-03-14"
-  dtModified: "2026-04-28"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Restorer
   aetherPower: bulwark
   lb1:
diff --git a/data/heroes/blue/5/Cobalt.yml b/data/heroes/blue/5/Cobalt.yml
index 9ffec860..3c77b547 100644
--- a/data/heroes/blue/5/Cobalt.yml
+++ b/data/heroes/blue/5/Cobalt.yml
@@ -38,4 +38,49 @@ lb2:
   attack: 988
   defense: 845
   health: 1770
+costume:
+  design: costume1
+  bonuses: 78/78/78/1
+  class: Paladin
+  power: 1323
+  attack: 1425
+  defense: 1219
+  health: 2557
+  skill: Katana Tempest
+  effects:
+  - 'Special Skill has a different effect when charged with 100% / 200% / 300% mana:'
+  - 'x1 Mana Charge:'
+  - Deals 420% damage to the target.
+  - The attack has a 65% chance to bypass defensive buffs. (This includes counterattacks.)
+  - The caster gains 15% mana if any defensive buffs were bypassed.
+  - 'x2 Mana Charge:'
+  - Deals 430% damage to the target and nearby enemies.
+  - The attack has a 85% chance to bypass defensive buffs. (This includes counterattacks.)
+  - The caster gains 25% mana if any defensive buffs were bypassed.
+  - 'x3 Mana Charge:'
+  - Deals 440% damage to all enemies.
+  - The attack bypasses defensive buffs. (This includes counterattacks.)
+  - After the Special Skill has been cast, increases the mana of the caster by 50%.
+  types:
+  - Charge
+  - Hit 1/3/All
+  - Bypass Chance
+  - Mana Boost Self on bypass
+  passives:
+  - 'Rending Touch: Each time this character counterattacks an enemy, the attacker
+    receives 596 Bleed damage over 4 turns.'
+  image: https://imgur.com/HxhmhK3.jpg
+  dtReleased: "2026-05-03"
+  dtModified: ""
+  aetherPower: attack_up
+  lb1:
+    power: 1416
+    attack: 1536
+    defense: 1315
+    health: 2757
+  lb2:
+    power: 1602
+    attack: 1758
+    defense: 1504
+    health: 3154
 ...
diff --git a/data/heroes/blue/5/Hogne.yml b/data/heroes/blue/5/Hogne.yml
index bab9bd09..7083c200 100644
--- a/data/heroes/blue/5/Hogne.yml
+++ b/data/heroes/blue/5/Hogne.yml
@@ -13,9 +13,9 @@ effects:
 - Attacks the target and nearby enemies with Frostfall Strike, dealing up to 2300
   damage. Deals 40% more if the target is of the Fire element. This Special Skill
   never misses its targets.
-- Reduces the max health of the target and nearby enemies with 800. This effec is
-  strong against targets with boosted health. (Max health can't get lower than 30%
-  of the original max health. Any boosted health is reduced by an additional 600.)
+- Reduces the max health of the target and nearby enemies with 800. The effect is
+  stronger against targets with boosted health. (Max health can't get lower than 30%
+  of the original max health. Any boosted health is reduced by an additional 800.)
 - The target and nearby enemies get -70% decrease of any healing received for 4 turns.
 types:
 - Frostfall Strike 3
@@ -27,13 +27,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 315 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 315 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/adOyVFt.jpg
 dtReleased: "2025-04-14"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Great Knight
 aetherPower: defense_up
 lb1:
diff --git a/data/heroes/blue/5/Svafa.yml b/data/heroes/blue/5/Svafa.yml
index 35a81289..40920094 100644
--- a/data/heroes/blue/5/Svafa.yml
+++ b/data/heroes/blue/5/Svafa.yml
@@ -27,13 +27,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 346 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 346 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/vZbek8s.jpg
 dtReleased: "2025-08-26"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Big Game Hunter
 aetherPower: dodge
 lb1:
diff --git a/data/heroes/green/4/Snorri.yml b/data/heroes/green/4/Snorri.yml
index 7fa0067c..41c95124 100644
--- a/data/heroes/green/4/Snorri.yml
+++ b/data/heroes/green/4/Snorri.yml
@@ -26,13 +26,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 209 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 209 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/Mit6blW.jpg
 dtReleased: "2025-08-06"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Storyteller
 aetherPower: fiend_resist
 lb1:
diff --git a/data/heroes/green/5/Coleston.yml b/data/heroes/green/5/Coleston.yml
index 79d21d4c..045dff1e 100644
--- a/data/heroes/green/5/Coleston.yml
+++ b/data/heroes/green/5/Coleston.yml
@@ -26,6 +26,7 @@ passives:
 image: https://imgur.com/jgRflbZ.jpg
 dtReleased: "2026-05-01"
 dtModified: ""
+fancy_name: Unstoppable Halfling
 aetherPower: attack_up
 lb1:
   power: 1309
diff --git a/data/heroes/green/5/Dagr.yml b/data/heroes/green/5/Dagr.yml
index db8cc2a6..b6e965e5 100644
--- a/data/heroes/green/5/Dagr.yml
+++ b/data/heroes/green/5/Dagr.yml
@@ -11,12 +11,12 @@ health: 2125
 skill: Blazing Venom
 effects:
 - Attacks all enemies with Firestorm Strike, dealing up to 1500 damage. Deals 40%
-  more if the target is of the Nature element. This Special Skill never misses its
-  targets.
+  more damage if the target is of the Nature element. This Special Skill never misses
+  its targets.
 - Damage bypasses target's Minions.
 - All enemies receive 388 Poison damage over 4 turns.
-- All enemies take +50% increased damage from Burn and Poison status ailments for
-  4 turns.
+- All enemies take +50% increased damage from Burn and Poison status ailments and
+  negative stacks for 4 turns.
 types:
 - Firestorm Strike All
 - Bypass Minions
@@ -28,13 +28,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-  Core, the Corrosive Burn deals 330 Burn damage, and lowers the target''s defense
+  Core, the Corrosive Burn deals 330 Burn damage and lowers the target''s defense
   by -12% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/BDzoVb0.jpg
 dtReleased: "2025-01-26"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Mountain Shaman
 aetherPower: dodge
 lb1:
@@ -82,7 +82,8 @@ costume:
     is exhausted when the Core is activated.'
   image: https://imgur.com/RP6dYzm.jpg
   dtReleased: "2026-05-01"
-  dtModified: ""
+  dtModified: "2026-05-01"
+  fancy_name: Dwarven Plague Shaman
   aetherPower: fiend_resist
   lb1:
     power: 1414
diff --git a/data/heroes/green/5/Fafnir.yml b/data/heroes/green/5/Fafnir.yml
index ac5d2df7..17e42b80 100644
--- a/data/heroes/green/5/Fafnir.yml
+++ b/data/heroes/green/5/Fafnir.yml
@@ -26,13 +26,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 337 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 337 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/4ndmZBW.jpg
 dtReleased: "2025-06-13"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Lord of Myrkheim
 aetherPower: counterattack
 lb1:
diff --git a/data/heroes/green/5/Ott.yml b/data/heroes/green/5/Ott.yml
index 61deacfc..14aff719 100644
--- a/data/heroes/green/5/Ott.yml
+++ b/data/heroes/green/5/Ott.yml
@@ -26,13 +26,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-  Core, the Corrosive Burn deals 305 Burn damage, and lowers the target''s defense
+  Core, the Corrosive Burn deals 305 Burn damage and lowers the target''s defense
   by -12% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/XIyQFXu.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-28"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Merry Trickster
 aetherPower: regen
 lb1:
@@ -49,10 +49,10 @@ costume:
   design: costume1
   bonuses: 12/12/12/5
   class: Monk
-  power: 1273
-  attack: 1236
-  defense: 1315
-  health: 2483
+  power: 1290
+  attack: 1258
+  defense: 1339
+  health: 2505
   skill: Guarding Tunes
   effects:
   - Boosts health of all allies by 900. Boosted health can exceed max HP.
@@ -71,13 +71,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 364 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 371 Burn damage and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/xREyScg.jpg
   dtReleased: "2025-10-15"
-  dtModified: "2026-04-28"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Maestro Trickster
   aetherPower: boosted_regen
   lb1:
diff --git a/data/heroes/green/5/Troop Mimic Nature.yml b/data/heroes/green/5/Troop Mimic Nature.yml
new file mode 100644
index 00000000..dde6a43a
--- /dev/null
+++ b/data/heroes/green/5/Troop Mimic Nature.yml	
@@ -0,0 +1,60 @@
+---
+name: Troop Mimic Nature
+source: secretsummon
+family: mimic
+speed: Average
+class: Wizard
+power: 1282
+attack: 1336
+defense: 1332
+health: 2263
+skill: Gluttonous Chomp
+effects:
+- Deals 480% damage to the target.
+- If an enemy is defeated by the attack, the caster recovers +50% health and gains
+  +33% mana. (After a character has received 5 direct mana additions from Special
+  Skills during a single turn, all subsequent direct mana additions done by Special
+  Skills will have reduced power on that character.)
+- All Nature allies get +100% normal attack for 4 turns. This effect can be active
+  in additional to other effects that alter attack in general. Normal attacks can
+  have a total maximum of +200% increased power while this effect is active.
+- The Mimic chest closes for 2 turns. (The Mimic is immune to damage and new status
+  ailments while closed.)
+types:
+- Hit 1
+- Mimic Chest
+- Normal Attack Buff All
+passives:
+- 'Perfect Accuracy: This character''s Special Skill never misses its targets.'
+- 'Mimic Loot: This Mimic grants a chance for the following extra loot when completing
+  stages'
+- RARE
+- ' * Rebel Sharpshooters'
+- ' * Deepwood Ents'
+- ' * Rebel Illusionists'
+- ' * Trainer Troop'
+- UNCOMMON
+- ' * Rebel Archers'
+- ' * Village Fighters'
+- ' * Trainer Troop'
+- COMMON
+- ' * Common Villagers'
+- ' * Rebel Rogues'
+- ' * Deepwood Enchanters'
+- ' * Trainer Troop'
+image: https://imgur.com/wp6oP8U.jpg
+dtReleased: "2026-05-02"
+dtModified: ""
+fancy_name: Bounty of Dreadful Arsenal
+aetherPower: bulwark
+lb1:
+  power: 1372
+  attack: 1440
+  defense: 1436
+  health: 2439
+lb2:
+  power: 1552
+  attack: 1648
+  defense: 1643
+  health: 2791
+...
diff --git a/data/heroes/purple/5/Dularfulr.yml b/data/heroes/purple/5/Dularfulr.yml
index 5bd089e6..fa3b0b1b 100644
--- a/data/heroes/purple/5/Dularfulr.yml
+++ b/data/heroes/purple/5/Dularfulr.yml
@@ -31,7 +31,7 @@ passives:
   exhausted when the Core is activated.'
 image: https://i.imgur.com/mO16Dj6.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-28"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Dark Seer
 aetherPower: special_armor
 lb1:
@@ -48,10 +48,10 @@ costume:
   design: costume1
   bonuses: 14/14/15/5
   class: Paladin
-  power: 1294
-  attack: 1282
-  defense: 1323
-  health: 2504
+  power: 1315
+  attack: 1305
+  defense: 1347
+  health: 2548
   skill: Night's Calibration
   effects:
   - All allies regenerate 1300 HP over 4 turns.
@@ -71,13 +71,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 378 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 384 Burn damage, and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/FfGsve9.jpg
   dtReleased: "2026-04-07"
-  dtModified: "2026-04-28"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Dark Engineer
   aetherPower: defense_up
   lb1:
diff --git a/data/heroes/purple/5/Hel.yml b/data/heroes/purple/5/Hel.yml
index 6e70f2b6..b9f7607a 100644
--- a/data/heroes/purple/5/Hel.yml
+++ b/data/heroes/purple/5/Hel.yml
@@ -82,7 +82,7 @@ costume2:
   skill: Crush of Toon Hel
   effects:
   - Deals 570% damage to the target and minor damage to nearby enemies.
-  - The target and nearby enemies get -34% defense against Holy for 4 turns.
+  - The target and nearby enemies get -34% defense against Dark for 4 turns.
   - The target and nearby enemies can't gain mana for 4 turns.
   - Deals extra damage against Holy.
   - Elemental Link gives all Dark allies +15% attack and +15% defense for 6 turns.
diff --git a/data/heroes/purple/5/Hreidmarr.yml b/data/heroes/purple/5/Hreidmarr.yml
index e4f8b77c..03b2c8ed 100644
--- a/data/heroes/purple/5/Hreidmarr.yml
+++ b/data/heroes/purple/5/Hreidmarr.yml
@@ -28,13 +28,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 312 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 312 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/UInCnGF.jpg
 dtReleased: "2025-02-23"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Mountain King
 aetherPower: counterattack
 lb1:
diff --git a/data/heroes/purple/5/Thrivaldi.yml b/data/heroes/purple/5/Thrivaldi.yml
index 95be8b7c..6f5b8ceb 100644
--- a/data/heroes/purple/5/Thrivaldi.yml
+++ b/data/heroes/purple/5/Thrivaldi.yml
@@ -13,7 +13,7 @@ effects:
 - Attacks all enemies with Frostfall Strike, dealing up to 1600 damage. Deals 40%
   more if the target is of the Fire element. This Special Skill never misses its targets.
 - All allies get +40% defense for 4 turns.
-- All allies are immune to damage from status ailments fo 4 turns.
+- All allies are immune to damage from status ailments and negative stacks for 4 turns.
 types:
 - Hit All
 - Defense Buff All
@@ -24,13 +24,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 331 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 331 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/GPSIC9I.jpg
 dtReleased: "2025-05-16"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Frost Seeker
 aetherPower: defense_up
 lb1:
diff --git a/data/heroes/red/3/Helgi.yml b/data/heroes/red/3/Helgi.yml
index 044d404d..74e2793a 100644
--- a/data/heroes/red/3/Helgi.yml
+++ b/data/heroes/red/3/Helgi.yml
@@ -21,13 +21,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 147 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 147 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/URDTarn.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-07"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Rage Runner
 aetherPower: attack_up
 lb1:
@@ -61,13 +61,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 170 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 170 Burn damage and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/vPctOAj.jpg
   dtReleased: "2025-10-15"
-  dtModified: "2026-04-07"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Replenisher
   aetherPower: special_boost
   lb1:
diff --git a/data/heroes/red/5/Aethslegaur.yml b/data/heroes/red/5/Aethslegaur.yml
index 18278c45..ea9ee5b9 100644
--- a/data/heroes/red/5/Aethslegaur.yml
+++ b/data/heroes/red/5/Aethslegaur.yml
@@ -14,7 +14,7 @@ effects:
   if the target is of the Nature element. This Special Skill never misses its targets.
 - All allies get +45% chance to dodge attacks and Special Skills for 5 turns.
 - 'This character gets a Mark of Immolation for 5 turns. Whenever an enemy or an ally
-  receives Burn damage, the caster gains a stack. (Max: 10). Each stacks increases
+  receives Burn damage, the caster gains a stack. (Max: 10). Each stack increases
   mana generation of the caster by +6%.'
 types:
 - Hit 1
@@ -26,13 +26,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 312 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 312 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/rCRyftg.jpg
 dtReleased: "2025-03-23"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Fire Seeker
 aetherPower: regen
 lb1:
diff --git a/data/heroes/red/5/Fimafeng.yml b/data/heroes/red/5/Fimafeng.yml
index 837ed319..f33d5d31 100644
--- a/data/heroes/red/5/Fimafeng.yml
+++ b/data/heroes/red/5/Fimafeng.yml
@@ -13,7 +13,7 @@ effects:
 - Safely cleanses all status ailments from the caster.
 - Attacks the target with Frostfall Strike, dealing up to 3000 damage. Deals 40% more
   if the target is of the Fire element. This Special Skill never misses its targets.
-- 'Stack (Max: 10): All allies get +5% mana generation.(Affects only mana generated
+- 'Stack (Max: 10): All allies get +5% mana generation. (Affects only mana generated
   from matching tiles or mana gained by the defense team at the end of their turn.)'
 - 'Stack (Max: 10): All allies get +20% defense.'
 types:
@@ -27,13 +27,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 338 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 338 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/TXnhxAk.jpg
 dtReleased: "2025-07-11"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Survivalist
 aetherPower: regen
 lb1:
diff --git a/data/heroes/red/5/Regin.yml b/data/heroes/red/5/Regin.yml
index 3679ecef..f9feace6 100644
--- a/data/heroes/red/5/Regin.yml
+++ b/data/heroes/red/5/Regin.yml
@@ -25,13 +25,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-  Core, the Corrosive Burn deals 319 Burn damage, and lowers the target''s defense
+  Core, the Corrosive Burn deals 319 Burn damage and lowers the target''s defense
   by -12% each turn. Deals extra damage against heroes with Minions or Mega Minions.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/IX7uDP5.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-28"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Fabled Prince
 aetherPower: counterattack
 lb1:
@@ -48,10 +48,10 @@ costume:
   design: costume1
   bonuses: 12/12/12/5
   class: Rogue
-  power: 1273
-  attack: 1313
-  defense: 1246
-  health: 2432
+  power: 1291
+  attack: 1337
+  defense: 1268
+  health: 2453
   skill: Cursed Plan
   effects:
   - Dispels buffs from the target and nearby enemies.
@@ -69,13 +69,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 387 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 394 Burn damage and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/Pn28cus.jpg
   dtReleased: "2025-10-15"
-  dtModified: "2026-04-28"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Fallen Prince
   aetherPower: ailment_immunity
   lb1:
diff --git a/data/heroes/yellow/4/Fjalar.yml b/data/heroes/yellow/4/Fjalar.yml
index e9167f27..49149c87 100644
--- a/data/heroes/yellow/4/Fjalar.yml
+++ b/data/heroes/yellow/4/Fjalar.yml
@@ -25,13 +25,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 193 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 193 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/iXEEsKX.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-07"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Golden Skald
 aetherPower: defense_up
 lb1:
@@ -69,13 +69,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With a fully charged Molten
-    Core, the Corrosive Burn deals 238 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 238 Burn damage and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/e5fIPsA.jpg
   dtReleased: "2025-10-15"
-  dtModified: "2026-04-07"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Ghostly Skald
   aetherPower: special_armor
   lb1:
diff --git a/data/heroes/yellow/5/Bragi.yml b/data/heroes/yellow/5/Bragi.yml
index ece2b33a..93cdab28 100644
--- a/data/heroes/yellow/5/Bragi.yml
+++ b/data/heroes/yellow/5/Bragi.yml
@@ -11,7 +11,7 @@ health: 2257
 skill: Freezing Power Hooks
 effects:
 - Attacks the target with Frostfall Strike, dealing up to 2500 damage. Deals 40% more
-  if the target is of the Fire element.  This Special Skill never misses its targets.
+  if the target is of the Fire element. This Special Skill never misses its targets.
 - Steals a random dispellable buff from the target to the caster.
 - If the target has been inflicted with Frost, Freezing Power Hooks will be recast
   once on a random target. (If the target is defeated, the Special Skill will not
@@ -32,7 +32,7 @@ passives:
   exhausted when the Core is activated.'
 image: https://imgur.com/j0knuQo.jpg
 dtReleased: "2025-10-02"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Prizefighter
 aetherPower: counterattack
 lb1:
diff --git a/data/heroes/yellow/5/Gandr.yml b/data/heroes/yellow/5/Gandr.yml
index 1a59fe73..8b4f357f 100644
--- a/data/heroes/yellow/5/Gandr.yml
+++ b/data/heroes/yellow/5/Gandr.yml
@@ -25,13 +25,13 @@ passives:
 - 'Molten Core: The Molten Core activates each time this character''s Special Skill
   is cast:'
 - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten Core,
-  the Corrosive Burn deals 315 Burn damage, and lowers the target''s defense by -12%
+  the Corrosive Burn deals 315 Burn damage and lowers the target''s defense by -12%
   each turn. Deals extra damage against heroes with Minions or Mega Minions.'
 - ' * The Burn damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://i.imgur.com/hNiWYCE.jpg
 dtReleased: "2024-12-03"
-dtModified: "2026-04-28"
+dtModified: "2026-05-01"
 fancy_name: Dwarven Wind Warrior
 aetherPower: ailment_immunity
 lb1:
@@ -48,10 +48,10 @@ costume:
   design: costume1
   bonuses: 12/12/13/5
   class: Paladin
-  power: 1277
-  attack: 1291
-  defense: 1279
-  health: 2444
+  power: 1294
+  attack: 1314
+  defense: 1302
+  health: 2466
   skill: Regal Spearhead
   effects:
   - Attacks all enemies with Firestorm Strike, dealing up to 2600 damage. Deals 40%
@@ -69,13 +69,13 @@ costume:
   - 'Molten Core: The Molten Core activates each time this character''s Special Skill
     is cast:'
   - ' * All enemies receive Corrosive Burn for 3 turns. With fully charged Molten
-    Core, the Corrosive Burn deals 380 Burn damage, and lowers the target''s defense
+    Core, the Corrosive Burn deals 387 Burn damage and lowers the target''s defense
     by -13% each turn. Deals extra damage against heroes with Minions or Mega Minions.'
   - ' * The Burn damage is scaled by the amount of charge in the Core. All charge
     is exhausted when the Core is activated.'
   image: https://imgur.com/mgjd5V3.jpg
   dtReleased: "2026-02-18"
-  dtModified: "2026-04-28"
+  dtModified: "2026-05-01"
   fancy_name: Dwarven Regal Soldier
   aetherPower: mana_boost
   lb1:
diff --git a/data/heroes/yellow/5/Hiyori.yml b/data/heroes/yellow/5/Hiyori.yml
new file mode 100644
index 00000000..13c5ccfe
--- /dev/null
+++ b/data/heroes/yellow/5/Hiyori.yml
@@ -0,0 +1,55 @@
+---
+name: Hiyori
+source: ninja
+family: ronin
+speed: Charge
+class: Sorcerer
+power: 1323
+attack: 1363
+defense: 1386
+health: 2381
+skill: Sensu of Immortality
+effects:
+- 'Special Skill has a different effect when charged with 100% / 200% / 300% mana:'
+- 'x1 Mana Charge:'
+- ' * Recovers 15% health for all allies.'
+- ' * Each defeated ally has 30% chance to get revived with 30% HP.'
+- ' * For the next 2 turns, all allies receive 10% mana at the end of the turn.'
+- 'x2 Mana Charge:'
+- ' * Recovers 35% health for all allies.'
+- ' * Each defeated ally has 40% chance to get revived with 40% HP.'
+- ' * Cleanses 1 status ailment from all allies. (Status ailments are cleansed in
+  the order they have been received. The latest status ailments are cleansed first.)'
+- ' * For the next 3 turns, all allies receive 10% mana at the end of the turn.'
+- 'x3 Mana Charge:'
+- ' * Recovers 55% health for all allies.'
+- ' * Each defeated ally has 60% chance to get revived with 60% HP.'
+- ' * Cleanses status ailments from all allies.'
+- ' * For the next 5 turns, all allies receive 15% mana at the end of the turn.'
+types:
+- Charge
+- Healer All
+- Reviver
+- Boost Mana All
+- Cleanse Latest/All Ailment All
+passives:
+- 'Prevent Boosted Healing: Enemies'' health cannot increase above their max health.'
+- 'Dishonorable Defeat: When this character is defeated by a Special Skill, they perform
+  the following actions'
+- ' * The attacker receives 450% damage.'
+- ' * The attacker receives 1500 Bleed damage over 3 turns.'
+image: https://imgur.com/0N0qZAI.jpg
+dtReleased: "2026-05-03"
+dtModified: ""
+aetherPower: regen
+lb1:
+  power: 1416
+  attack: 1469
+  defense: 1494
+  health: 2566
+lb2:
+  power: 1602
+  attack: 1681
+  defense: 1709
+  health: 2936
+...
diff --git a/data/heroes/yellow/5/Motsognir.yml b/data/heroes/yellow/5/Motsognir.yml
index c917a5b4..ce2d9f88 100644
--- a/data/heroes/yellow/5/Motsognir.yml
+++ b/data/heroes/yellow/5/Motsognir.yml
@@ -29,13 +29,13 @@ passives:
 - 'Arctic Core: The Arctic Core activates each time this character''s Special Skill
   is cast'
 - ' * All enemies receive Corrosive Frost for 3 turns. With fully charged Arctic Core,
-  the Corrosive Frost deals 316 Frost damage, and lowers the target''s attack by -15%
+  the Corrosive Frost deals 316 Frost damage and lowers the target''s attack by -15%
   each turn. Deals extra damage against heroes with Minions or a Mega Minion.'
 - ' * The Frost damage is scaled by the amount of charge in the Core. All charge is
   exhausted when the Core is activated.'
 image: https://imgur.com/393CAV1.jpg
 dtReleased: "2025-08-06"
-dtModified: ""
+dtModified: "2026-05-01"
 fancy_name: Dwarven Frontier Wildman
 aetherPower: regen
 lb1:
diff --git a/img/heroes/cobaltcostume.jpg b/img/heroes/cobaltcostume.jpg
new file mode 100644
index 00000000..8959e7a9
Binary files /dev/null and b/img/heroes/cobaltcostume.jpg differ
diff --git a/img/heroes/hiyori.jpg b/img/heroes/hiyori.jpg
new file mode 100644
index 00000000..e4d4feb6
Binary files /dev/null and b/img/heroes/hiyori.jpg differ
diff --git a/img/heroes/troopmimicnature.jpg b/img/heroes/troopmimicnature.jpg
new file mode 100644
index 00000000..b367c94e
Binary files /dev/null and b/img/heroes/troopmimicnature.jpg differ