Broken cards, and how to fix them?

I'd like to fix the broken cards in DotP 2012, like Flameborn Hellion being able to not attack (well, never been able to summon it myself, but I've witnessed the AI using it plenty of times and not attacking despite it being possible). Are there any more? Well, anyway, anyone knows how to fix Flameborn Hellion and possibly any other cards?
Oh, and a small thing I was looking for in the previous DotP but now also in 2012: if someone knows a way to disable mulligans (either just disabling it, or just disabling the AI from mulliganing, or any other way), please tell. Would love to play some games where neither me nor the AI mulligans. Would produce some interesting games instead of always the same.
Oh, and a small thing I was looking for in the previous DotP but now also in 2012: if someone knows a way to disable mulligans (either just disabling it, or just disabling the AI from mulliganing, or any other way), please tell. Would love to play some games where neither me nor the AI mulligans. Would produce some interesting games instead of always the same.