Irradiate 
Instant
Target creature gets -1/-1 until end of turn for each artifact you control.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target creature gets -1/-1 until end of turn for each artifact you control.