Siren's Call [Limited Edition Beta] Magic 2014 Set: Limited Edition Beta Type:

Set: Limited Edition Beta Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a green spell

Counter target spell

Creatures the active player controls attack this turn if able

As the green sun crowned

Siren's Call [Limited Edition Beta] Magic 2014 Set: Limited Edition Beta Type:Set: Limited Edition Beta 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.