Board Thread:Wikia Discussion/@comment-27279544-20170528163214/@comment-24930367-20170613134248

Nonono, you're borrowing Kaguya not for the auto-revive but for the "20% boost to item drop rate".

It means all non-100% gold chests in Omega raids have their chance increased by 20%, which is really handy when you want to leech something.

It's not rare to see any teams specialized for farming have Kaguya both as main and support summon (40% drop rate boost total, 50% if max-capped summon).