Majestic Auricorn is a uncommon Creature — Unicorn card from Ikoria: Lair of Behemoths (IKO), collector number 22. Current market price: $0.16 (foil $0.35), TCGplayer market prices via Scryfall.
Mutate {3}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Vigilance Whenever this creature mutates, you gain 4 life.