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 - $6.80
Lightly Played - $5.40
Moderately Played - $4.80
Heavily Played - $4.10
Damaged - $3.40
Near Mint Spanish - $6.80
Lightly Played Spanish - $5.40
Moderately Played Spanish - $4.80
Heavily Played Spanish - $4.10
Damaged Spanish - $3.40