Bloomburrow Commander

Managorger Hydra

Trample
Whenever a player casts a spell, put a +1/+1 counter on Managorger Hydra.

March of the Machine Commander

Commander Legends: Battle for Baldur's Gate

"Whoever said two heads are better than one never met a hydra before."
—Crocodile Jackson, legendary cowboy

Secret Lair Drop

Commander 2021

Commander 2016

Magic Origins

Trample (This creature can deal excess combat damage to defending player or planeswalker while attacking.)
Whenever a player casts a spell, put a +1/+1 counter on Managorger Hydra.