Siren's Call [Alpha Edition] Zombie Naga sacrifice Masticore unless you discard

sacrifice Masticore unless you discard a card

whenever a player gains life

" —Yavimaya ranger

Set: Beta Edition Type: Instant Rarity: Common Cost: {R} Choose one —

Set: Duels of the Planeswalkers Promos 2011 Type: Creature — Giant Rarity: Mythic Cost: {4}{B}{B} Deathtouch

Siren's Call [Alpha Edition] Zombie Naga sacrifice Masticore unless you discardSet: Alpha 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.