Your search for "Contested War Zone (0008)" revealed the following:
Contested War Zone (MBS) from Mirrodin Besieged, available at 401 Games Canada. Rarity: Rare Finish: Normal 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...
Contested War Zone - Borderless (EOS) from Edge of Eternities: Stellar Sights, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Josu Solano Card Text:Whenever a creature deals combat damage to you, that creature's controller gains control of this...