So while on my Ghostmare kick, I found this bug. OCCAISIONALLY when the AI discards a card and the hand is full because of nightmaring the Ghost, the AI loses 10HP.
I don't know if the AI discarded a Ghost and the HP decrease is the bug, or it, for some reason, just lost 10HP for discarding something.
In this pic I was facing the Rainbow AI3, it doesn't have an unupped Ghost in its deck.
I'll try for more pics, anyone else find this problem?