Siren's Call [Limited Edition Alpha] Return to Ravnica you may have this creature

you may have this creature become a copy of target creature

Set: Revised Edition Type: Enchantment Rarity: Rare Cost: {1}{U} You may have Copy Artifact enter the battlefield as a copy of any artifact on the battlefield

Set: Portal Three Kingdoms Type: Sorcery Rare Cost: {B} Search your library for a card

stroking the petal

"There is much to learn here

Siren's Call [Limited Edition Alpha] Return to Ravnica you may have this creatureSet: Limited Edition Alpha Type: Instant 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.