Deserter's Quarters 
Artifact
You may choose not to untap this artifact during your untap step.
, 
: Tap target creature. It doesn't untap during its controller's untap step for as long as this artifact remains tapped.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL