Amber Prison is a rare Artifact card from Magic: The Gathering (The List, PLST). Current market price: $0.26.
Rare
The List (PLST)
{4}
Mana Value
4
Card Text
You may choose not to untap this artifact during your untap step.
{4}, {T}: 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.
