My first post here so I’m not sure exactly the right way, but here goes.
I found a bug that comes up in a warlock deck that I play. The bug is able to be reproduced without much trouble. Basically I run the archaeology quest for the free card hero power. When I draw my guldan hero card for 0 and use it the same turn the deal 3 damage power becomes unusable. I have a picture of myself in a game with 10 mana and the hero power not lit up as an option, and when trying to use it the game doesn’t let me. I can’t figure out how to add an image to this post for proof.