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 - $400.900
Lightly Played - $320.800
Moderately Played - $280.700
Heavily Played - $240.600
Damaged - $200.500
Near Mint Spanish - $400.900
Lightly Played Spanish - $320.800
Moderately Played Spanish - $280.700
Heavily Played Spanish - $240.600
Damaged Spanish - $200.500