Amber Prison
Artifact
You may choose not to untap this artifact during your untap step.
, : Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as this artifact remains tapped.
Printings & Conditions (3)
Classic Sixth Edition (6ED)(Classic 6th Edition)#272Rare
Mirage (MIR)(Mirage)#292Rare
The List (PLST)(The List)#MIR-292Rare