Siren's Call [Limited Edition Beta] 171 but its effects are negated

but its effects are negated

Set: HeartGold & SoulSilver: Call of Legends Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Set: Sun & Moon: Team Up Type: Fairy Rarity: Holo Rare Retreat cost: Colorless

Set: XY: Phantom Forces Type: Psychic Rarity: Secret Rare Retreat cost: Colorless

Siren's Call [Limited Edition Beta] 171 but its effects are negatedSet: Limited Edition Beta 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.