Vaultborn Tyrant is a mythic Creature — Dinosaur card from The Big Score Promos (PBIG), collector number 20p. Current market price: $37.65 (foil $34.33), TCGplayer market prices via Scryfall.
Trample Whenever this creature or another creature you control with power 4 or greater enters, you gain 3 life and draw a card. When this creature dies, if it's not a token, create a token that's a copy of it, except it's an artifact in addition to its other types.