Sacrifice an artifact. If you do, search your library for an artifact card. If that card's converted mana cost is less than or equal to the sacrificed artifact's converted mana cost, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle your library.
Near Mint - $326.700
Lightly Played - $261.400
Moderately Played - $228.700
Heavily Played - $196.100
Damaged - $163.400
Near Mint Spanish - $326.700
Lightly Played Spanish - $261.400
Moderately Played Spanish - $228.700
Heavily Played Spanish - $196.100
Damaged Spanish - $163.400