Darksteel Monolith{8}
Artifact
Indestructible
Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell you cast from your hand.
Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell you cast from your hand.
Mirrodin's heart beats with Phyrexian oil.
Artist: Sergey Glushakov