Machinist's Dismissal 
Instant
This spell costs 
less to cast for each artifact you control and each artifact card in your hand.
Counter target noncreature spell.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL