Darksteel Monolith
Artifact
Indestructible
Once each turn, you may pay 
rather than pay the mana cost for a colorless spell you cast from your hand.
Illustrated by
The Zeta Set#102RareEnglish
CascadeThe Zeta Set#102RareEnglishCascadeArtifact
Indestructible
Once each turn, you may pay rather than pay the mana cost for a colorless spell you cast from your hand.
Illustrated by
The Zeta Set#102RareEnglish