Steelswarm Operator (Foil) (EOE) from Edge of Eternities, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Foil
• Artist: Cristi Balanescu
• Card Text:
  Flying
  T: Add U. Spend this mana only to cast an artifact spell.
  T: Add UU. Spend this mana only to activate abilities of artifact sources.