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 - $8.80
Lightly Played - $7.00
Moderately Played - $6.20
Heavily Played - $5.30
Damaged - $4.40
Near Mint Spanish - $8.80
Lightly Played Spanish - $7.00
Moderately Played Spanish - $6.20
Heavily Played Spanish - $5.30
Damaged Spanish - $4.40