Ember Swallower | Magic: The Gathering
Formats Ember Swallower is Legal in
Official Oracle Text for Ember Swallower
When Ember Swallower becomes monstrous, each player sacrifices three lands.
Official Rulings for Ember Swallower
9/15/2013 : Once a creature becomes monstrous, it can’t become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.
9/15/2013 : Monstrous isn’t an ability that a creature has. It’s just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.
9/15/2013 : An ability that triggers when a creature becomes monstrous won’t trigger if that creature isn’t on the battlefield when its monstrosity ability resolves.