Name: Slagstone Refinery Cost: 4 CMC: 4 Color: CID: Type: Artifact Rules Text: Whenever this artifact or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") Set/Rarity: The Brothers' War uncommon Set Code: BRO-U Legality: Legal in historic, Legal in timeless, Legal in legacy, Legal in pioneer, Legal in gladiator, Legal in commander, Legal in duel, Legal in vintage, Legal in oathbreaker, Legal in brawl, Legal in modern Price: $0.18 Foil price: $0.32