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 - $8.30
Lightly Played - $6.60
Moderately Played - $5.80
Heavily Played - $5.00
Damaged - $4.20
Near Mint Spanish - $8.30
Lightly Played Spanish - $6.60
Moderately Played Spanish - $5.80
Heavily Played Spanish - $5.00
Damaged Spanish - $4.20