Community

Hydra Broodmaster
Creature — Hydra
X generic mana X generic mana green mana : Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)
When this creature becomes monstrous, create X X/X green Hydra creature tokens.
Rulings (4)
Once a creature becomes monstrous, it can't become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.
Apr 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.
Apr 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.
Apr 26, 2014
Legality
Formats by platform
Commander
Competitive
Community & retro
Printings (5)
M3C#233$0.35
Modern Horizons 3 Commander
C21#194$0.37
Commander 2021