Three Tree City (Borderless) (0340) [Bloomburrow] Astartes Berserker then add one mana of

then add one mana of any color

Set: The List Type: Sorcery Rarity: Uncommon Cost: {1}{G} Search your library for a Forest card

Set: Seventh Edition Type: Artifact Rarity: Uncommon Cost: {3} Whenever a creature attacks

Set: Dominaria United Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {5} Timeless Lotus enters the battlefield tapped

If a permanent's ability is countered this way

Three Tree City (Borderless) (0340) [Bloomburrow] Astartes Berserker then add one mana ofSet: Bloomburrow Type: Legendary Land Rarity: Rare As Three Tree City enters, choose a creature type. {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.