Cobbleloots is a mod for Cobblemon that adds different ways to obtain items based on the original Pokémon video games.
Check the Documentation for more information on how to use the mod objects and features in your custom maps, or the Modinfo file for a quick overview of the mod.
If you are looking for the old mod, you can still find the files and docs in the Github Repository for Loot Balls. Keep in mind that the old mod is only compatible with Cobblemon 1.5.x versions and is no longer maintained.