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.
NM-Mint - $10.50
Lightly Played - $9.50
Moderately Played - $8.40
Heavily Played - $7.40
Damaged - $5.30
NM-Mint Non English - $10.50
Lightly Played Non English - $9.50
Moderately Played Non English - $8.40
Heavily Played Non English - $7.40
Damaged Non English - $5.30