Siren's Call [Alpha Edition] SM141 or a special trunk-or-treat display

or a special trunk-or-treat display

Set: EX: Team Rocket Returns Type: Colorless Rarity: Rare Retreat cost: Colorless

Unmatched is a highly asymmetrical miniature fighting game for two or four players

if you cast it

Siren's Call [Alpha Edition] SM141 or a special trunk-or-treat displaySet: Alpha Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.