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 - $10.20
Lightly Played - $9.20
Moderately Played - $8.20
Heavily Played - $7.20
Damaged - $5.10
NM-Mint Non English - $10.20
Lightly Played Non English - $9.20
Moderately Played Non English - $8.20
Heavily Played Non English - $7.20
Damaged Non English - $5.10