A Big F*cking Mistake

+2: You get an emblem until your next turn that says: "If a source would deal damage to you then put hexproof & indestructible on source target"
-X: All opponents exile X amount of cards from their hand and exile X amount of creatures in their control
-8: You get an emblem that says: "Any damage dealt to you or a permanent you control is reversed to all opponents"