I realize Bahamut is supposed to be the last boss and everything, but why does he get to break the rules? He's already strong enough a hero, but he's throwing down cards he doesn't have the mana for.
I had a very easy time with the hard badge, but I can't beat the last boss on easy story mode. How about that?
Survival mode does need to pause every few minutes though. My hands start to hurt so much, I can't type as well.
Bahamuts biggest perk (all abilities being charge based) is also his biggest downfall.. check out "Diminish" if you're having trouble against him ;)