You may choose not to untap Amber Prison during your untap phase. {4}, {T}: Tap target artifact, creature, or land. As long as Amber Prison remains tapped, that permanent does not untap during its controller's untap phase.

• Number: 8
• Rarity: R
• Type: Artifact
• Mana cost: 4
• Color: Artifact
• Artist: Donato Giancola