Aphetto Alchemist is a uncommon Creature — Human Wizard card from Onslaught (ONS), collector number 64. Current market price: $6.65 (foil $61.31), TCGplayer market prices via Scryfall.
{T}: Untap target artifact or creature. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)