Arcum's WhistleNear Mint $0.46
<3,T>: Target non-wall creature must attack. At end of turn, destroy that creature if it could not attack. Use this ability only during the creature's controller's turn before the attack. The creature's controller may counter this effect by paying X, where X is equal to the creature's casting cost. Arcum's Whistle does not affect creatures brought under their controller's control this turn.