When Riveting Rigger enters the battlefield, you may sacrifice another artifact. If you do, put two +1/+1 counters on Riveting Rigger and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)
"Turn a blender into an arc welder with a portable fusion reactor and a frozen yogurt dispenser? We can do it!"
Near Mint - $0.10
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Spanish - $0.10
Lightly Played Spanish - $0.10
Moderately Played Spanish - $0.10
Heavily Played Spanish - $0.10
Damaged Spanish - $0.10
Foil Prices
Near Mint Foil - $0.20
Lightly Played Foil - $0.20
Moderately Played Foil - $0.20
Heavily Played Foil - $0.10
Damaged Foil - $0.10
Near Mint Foil Spanish - $0.20
Lightly Played Foil Spanish - $0.20
Moderately Played Foil Spanish - $0.20
Heavily Played Foil Spanish - $0.10
Damaged Foil Spanish - $0.10