This is a very interesting card... Seems a bit too powerful though... 8
for 8 dmg a turn, and a great side effect. Side Effect would be pointless against wings, dim shield, fog, dusk, and thats all I can think of. Would have some bad side effects though, because thorn carpace and permafrost would now poison/freeze all your creatures once it got its defense power low enough... The 8 dmg alone is pretty good though. Well on second thought, Morning star is 5
for 8 dmg and is immaterial... Overall, all I have to say is that I like the idea. Very interesting. And you dont know if the opponent is going to play a shield or not so it could be worthless. Im going to say balanced because it can be a pretty situational side effect, and its raw dmg to quanta ratio is horribly OP without the effect being used.