Legendary Creature — Elder Dinosaur
This spell costs less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
12/12

Multicolor Ghalta variant with similar cost reduction and token payoff.

Big green beater that fits high-power creature strategies.

Overrun effect that scales with your big creatures' power.

Massive trample finisher for high-power green decks.

Anthem and trample alpha-strike payoff like Ghalta enables.

Hard-to-remove huge green dinosaur for stompy builds.

Cheap high-power body that helps cast Ghalta quickly.

Big green body with value, supports power-heavy decks.