Turf War is a rare Enchantment card from New Capenna Commander (NCC), collector number 54. Current market price: $0.26, TCGplayer market prices via Scryfall.
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.