Turf War 

Enchantment
When this enchantment enters, for each player, put a contested counter on target land that player controls.
Whenever a creature deals combat damage to a player, if that player controls one or more lands with contested counters on them, that creature's controller gains control of one of those lands of their choice and untaps it.
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Cards that do something similar expected a card that isn't here?
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Contested Game Ball 84%
$0.18#15907
"Whenever you're dealt combat damage, the attacking player gains control of this artifact and untaps it."