When this creature enters, 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.
Mana cost
1
R
Mana value
2
Printings
From
$9.76
EDHREC rank
#1184
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
19 Mar 2021
Because targets are chosen for activated abilities before costs (such as "Sacrifice an artifact") are paid, Goblin Engineer's second ability can't target the artifact that will be sacrificed to pay its cost.
19 Mar 2021
If a card in a player's graveyard has {X} in its mana cost, X is considered to be 0.