name: Mirrodin Besieged
printings: MH1, PLST
text: As Mirrodin Besieged enters the battlefield, choose Mirran or Phyrexian.\n• Mirran — Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token.\n• 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.