When Goblin Engineer enters the battlefield, you may search your library for an artifact card, put it into your graveyard, then shuffle. {R}, {T}, Sacrifice an artifact: Return target artifact card with mana value 3 or less from your graveyard to the battlefield.
Near Mint - $9.500
Lightly Played - $7.600
Moderately Played - $6.700
Heavily Played - $5.800
Damaged - $4.800
Near Mint Spanish - $9.500
Lightly Played Spanish - $7.600
Moderately Played Spanish - $6.700
Heavily Played Spanish - $5.800
Damaged Spanish - $4.800