Contested War Zone (Foil) (MBS) from Mirrodin Besieged, available at 401 Games Canada.

• Rarity: Rare
• Finish: Foil
• Artist: Scott Chou
• Card Text:
  Whenever you are dealt combat damage by a creature, that creature's controller gains control of Contested War Zone.
  T: Add 1 to your mana pool.
  1, T: Attacking creatures get +1/+0 until end of turn.