Hydra Broodmaster | Magic: The Gathering
Formats Hydra Broodmaster is Legal in
Official Oracle Text for Hydra Broodmaster
When Hydra Broodmaster becomes monstrous, put X X/X green Hydra creature tokens onto the battlefield.
Official Rulings for Hydra Broodmaster
4/26/2014 : Once a creature becomes monstrous, it can’t become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.
4/26/2014 : 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.
4/26/2014 : 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.