{T}: Add ◊ for each artifact you control named Powerstone Shard.

"Light passing through a powerstone is refracted by eternity and colored by planar energy. I wonder how the world appeared through Urza's eyes?"
—Teferi

• Number: 227
• Rarity: C
• Type: Artifact
• Mana cost: 3
• Color: Colorless
• Artist: Lindsey Look