Mirrodin Besieged [The List]Set: The List Type: Enchantment Rarity: Rare Cost: {2}{U} As Mirrodin Besieged enters the battlefield, choose Mirran or Phyrexian. Mirran Whenever you cast an artifact spell, create a 1 1 colorless Myr artifact creature token. Phyrexian At the beginning of your end step, draw a card, then discard a card. Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.