name: Amber Prison
originalText: You may choose not to untap Amber Prison during your untap step.\no4, oc\nT: Tap target artifact, creature, or land. As long as Amber Prison is tapped, that permanent doesn't untap during its controller's untap step.
printings: 6ED, MIR, PLST
text: You may choose not to untap Amber Prison during your untap step.\n{4}, {T}: Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as Amber Prison remains tapped.