I was just playing Pestal vs my arena deck and noticed this bug. On turn 3 I had 4 0/4 Pests out and the AI had an eternity in the weapon slot. It played flying weapon then SoR, but didn't bother to rewind two of my pests for free, presumably because their power was 0. The next turn I played eclipse, and then the AI did rewind one of them. If the AI had bothered to rewind on turn 3 it would have won the match.
edit: I've been told this should be in "Improve AI". I'm new to foruming - I'll post it there but the remove button said I wasn't allowed to delete my own posts. I assume someone else will. Sorry about that. Except I looked around and... is there such a section? Are you just messing with me?