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 - $5.60
Lightly Played - $4.50
Moderately Played - $3.90
Heavily Played - $3.40
Damaged - $2.80
Near Mint Spanish - $5.60
Lightly Played Spanish - $4.50
Moderately Played Spanish - $3.90
Heavily Played Spanish - $3.40
Damaged Spanish - $2.80