name: Arcum's Whistle
originalText: {3},ocT: 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.
printings: ICE
text: {3}, {T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That player may pay {X}, where X is that creature's mana value. If they don't pay, the creature attacks this turn if able, and at the beginning of the next end step, destroy it if it didn't attack this turn. Activate only before attackers are declared.
type: Artifact