Sauron, Dino Devotee is a mythic Legendary Creature — Dinosaur Vampire Villain card from Marvel Super Heroes Commander (MSC), collector number 731. Current market price: $5.67 (foil $11.18), TCGplayer market prices via Scryfall.
Flying Whenever Sauron enters or attacks, choose one — • Cure Cancer — You gain 3 life. • Turn People into Dinosaurs — Put a saurian counter on another target creature. It's a green Dinosaur with base power and toughness 5/5 for as long as it has a saurian counter on it.