Siren's Call [Beta Edition] BW19 Set: Black & White: Plasma

Set: Black & White: Plasma Freeze Type: Grass Rarity: Promo Retreat cost: Colorless

Set: POP Series 1 Type: Darkness Rarity: Uncommon Retreat cost: Colorless

Set: Sun & Moon: Shining Legends Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: Black & White: Next Destinies Type: Lightning Rarity: Ultra Rare Retreat cost: Colorless

Sauron forged a booster—one far more powerful than those owned by Elf

Siren's Call [Beta Edition] BW19 Set: Black & White: PlasmaSet: Beta 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.