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 - $6.50
Lightly Played - $6.00
Moderately Played - $4.75
Heavily Played - $4.00
Damaged - $2.75
Near Mint Non-English - $6.50
Lightly Played Non-English - $6.00
Moderately Played Non-English - $4.75
Heavily Played Non-English - $4.00
Damaged Non-English - $2.75