Ghalta, Primal Hunger is a mythic Legendary Creature — Elder Dinosaur card from Foundations Commander (FDC), collector number 8. Current market price: — (foil $2.20), TCGplayer market prices via Scryfall.
This spell costs {X} 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.)