Plate Spinning is a mythic Enchantment card from Unfinity (UNF), collector number 56. Current market price: $0.17 (foil $0.28), TCGplayer market prices via Scryfall.
Whenever you cast a spell, copy it and you may choose new targets for the copy. Then balance a card from outside the game on one of your fingertips. When that card falls or touches another card, sacrifice this enchantment.