User blog comment:Izayoii/Chi, the Bloodborne Mistress/@comment-10958553-20130821164954

The passive is far too powerful. It is a lot like evelynns, only evelynns has 8 seconds, and grants mana while stealthed. I really love the AP because you show up and BAM HAVE SOME DAMAGE!

I would consider a different trigger for this passive. Possibly out of combat for 4 seconds and casting a spell? even then I would suggest some durration. I really like this Idea.