Sigh. I have the problem with the ice dragon as well. At first I thought it wasn't a problem as I'd fought a few and no crashes. But now it crashes at a particular time. When the ice dragons burn at the beginning of their turn in a the artifact fight for the silver mana ring. I've tried all the above solutions in various combinations, but no luck
I tried commenting out both lines as well, but no luck. Any other way to debug this situation?