LotusMox
Amber Prison
Artifact
rare
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.
, : 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.
Illustrated by Donato Giancola