Parcelbeast is a uncommon Creature — Elemental Beast card from Ikoria: Lair of Behemoths (IKO), collector number 304. Current market price: $0.23 (foil $0.67), TCGplayer market prices via Scryfall.
Mutate {G}{U} (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.) {1}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.