Etherium Spinner (J21)

Whenever you cast a spell with mana value 4 or greater, create a 1/1 colorless Thopter artifact creature token with flying.

Legalities

• brawl: banned
• commander: legal
• legacy: legal
• modern: legal
• pauper: legal
• pioneer: banned
• standard: banned
• vintage: legal

Rulings

• 2021-06-18:

  If a spell on the stack has {X} in its mana cost, X is the value chosen for it when determining that spell’s mana value.

Links

• Scryfall
• Gatherer

Other Printings

• Etherium Spinner (MH2)
• Etherium Spinner (J21)