Wall of Permafrost

Defender, reach
Whenever Wall of Permafrost blocks a creature, that creature doesn't untap during its controller's next untap phase.
May block any number of creatures.
{u}{t}Tap target creature, that creature remains tapped as long as Wall of Permafrost stays tapped.
Wall of Permafrost may remain tapped during your next untap phase.

Nothing awaits you in this frozen land