Powerstone Maker

Covers cards that produce Powerstone tokens, the Brothers' War artifact tokens that tap for a colorless mana that can't be spent to cast nonartifact spells. Generators span planeswalkers like Karn, Living Legacy, sorceries like Splitting the Powerstone and Fallaji Excavation, creatures like Stone Retrieval Unit and Urza, Powerstone Prodigy, and lands like Hall of Tagsin. Distinct from tokens.treasure_maker, which produces any-color one-shot mana usable on any spell, and from tokens.clue_maker or tokens.food_maker, which produce non-mana utility artifact tokens. Powerstone-typed permanents that aren't tokens, and pure mana rocks, are not included.