Emeskal, the Lord's Smith

Affinity for Artifacts (This spell costs {1} less to cast for each artifact you control.)

Artifacts you control have "{t}: Add one mana of
any color."

When you cast Emeskal if you paid his full manacost, you may put an artifact from your hand onto the battlefield without paying its manacost.

"Those without ambition or vision are good only to feed the fires of my master's forges."