Leyline Binding is a rare Enchantment card from Dominaria United Promos (PDMU), collector number 24p. Current market price: $0.41 (foil $0.51), TCGplayer market prices via Scryfall.
Flash Domain — This spell costs {1} less to cast for each basic land type among lands you control. When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.