Etherium Spinner is a common Artifact Creature — Human Wizard card from Modern Horizons 2 (MH2), collector number 40. Current market price: $0.25 (foil $0.27), TCGplayer market prices via Scryfall.
Whenever you cast a spell with mana value 4 or greater, create a 1/1 colorless Thopter artifact creature token with flying.