Forge Mold

Imprint - When Forge Mold enters the battlefield, you may exile an artifact card with a cmc cost of 3 or less from your hand.
{x},{t}: Pay {x}where {x} is the cmc cost of the card exiled with Forge Mold. Place a token that is a copy of the artifact on the battlefield.
The secret to the great techniques of the dwarves lies in this one artifact