Terastodon is a rare Creature — Elephant card from Worldwake Promos (PWWK), collector number A6. Current market price: — (foil $0.49), TCGplayer market prices via Scryfall.
When this creature enters, you may destroy up to three target noncreature permanents. For each permanent put into a graveyard this way, its controller creates a 3/3 green Elephant creature token.