Well I was facing a guy that had a boneyard and a Armagio out. I had 2 crimson dragons out and he had 24 health left. His Armagio only had 1hp left so I firebolted it so my two 12/3 crimson dragons would kill him that turn.
When the Armagio died boneyard replaced it with a skeleten, like it should. But when I attacked, the skeleton apparently kept the gravity pull ability of the Armagio and abosrbed 12 points from one of my dragons.
next turn he played bones and i ended up losing a few turns after.
I bet this bug could affect other creatures with abilities as well. This really needs fixed. I predict a ton of Armagio boneyard decks once this gets around...