Siren's Call

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Card Text

<em>This version of this card has a non-standard Magic back. It is not legal for constructed play. </em> <br> Cast this spell only during an opponent’s turn, before attackers are declared. <br> Creatures the active player controls attack this turn if able. <br> 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.