Taleden, Iceborn Undead

Whenever a permanent doesn't untap during its
owner's untap step, create a 1/1 Black Zombie
Skeleton creature token.
{2}{u}{b}: Tap target nonland permanent target
player controls. That permanent don't untap
during that player's next untap step. Activate this ability only during your turn.
With limbs cold and breath frozen, the barren wastes
claims yet another.