Transmutation Font is a mythic Artifact card from The Big Score (BIG), collector number 58. Current market price: $13.74 (foil $27.00), TCGplayer market prices via Scryfall.
{T}: Create your choice of a Blood token, a Clue token, or a Food token. {3}, {T}, Sacrifice three artifact tokens with different names: Search your library for an artifact card, put it onto the battlefield, then shuffle. Activate only as a sorcery.