Ghalta, Primal Hunger

Legendary Creature — Elder Dinosaur - (rare)

This spell costs  less to cast, where X is the total power of creatures you control.
Trample

Various cultures of Ixalan tell stories of the monsters of legend that ended up as gristle between Ghalta's teeth.

Price

cardmarket 0.56

cardkingdom 0.49

tcgplayer 0.34

cardsphere 0.32