Slagstone Refinery
Slagstone Refinery
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.")
Artifact Tokens Artifacts Matter Exile Matters Mana Rock Mill Powerstone Token Ramp Reanimate Token Creation Tokens Matter