[Wotlk] NPC: Anub'ar Spiders

[Argonn]

These NPCs don't use their correct abilities, making this a pretty useless encounter, where this was one of the most annoying encounters in the instance.

Backstab:
http://www.wowhead.com/spell=52540/backstab
Fixate:
http://www.wowhead.com/spell=52537/fixate
Web wrap:
http://www.wowhead.com/spell=52087/web-wrap
Shadow Nova:
http://www.wowhead.com/spell=52535/shadow-nova

NPC:
http://www.wowhead.com/npc=28734/anubar-skirmisher#abilities
http://www.wowhead.com/npc=28733/anubar-shadowcaster#abilities
http://www.wowhead.com/npc=29335/anubar-webspinner#abilities