What do you think about the card Goblin Attack Force. It has a atk/2300 and def/0 (pm a mod or admin if I'm wrong and ask them to change it). Its effect is after you attack with it once it has to go to defence mode and stay that way for your next turn also.
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I thinks a ok card, not great because of its effect though. But combind with a Stop Defence (I think) its a deadly combonation. I'd give it a 6/10