Spell Suck 
Instant
Counter target spell, then assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL