Land Tax [Double Masters] 106 its controller adds one mana

its controller adds one mana of any type that land produced

as well as your basic score

Set: Avacyn Restored Type: Creature — Beast Rarity: Mythic Cost: {5}{G}{G}{G} Haste

Set: Aether Revolt Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {6} Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control

Set: Fourth Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step

Land Tax [Double Masters] 106 its controller adds one manaSet: Double Masters Type: Enchantment Rarity: Mythic Cost: {W} At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle your library.