Hedion, Insanity Seeker

+1: Discard a card. If you do, target creature gets +3/+0 until end of turn.
-2: Hedion, Insanity Seeker deals X damage to target player, where X is 7 minus the number of cards in your hand.
-6: You get an emblem with "Attacking creatures you control get +X/+0, where X is 7 minus the number of cards in your hand."