Wall of Frost

#28

Creature — Wall

Defender Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step.

"I have seen countless petty warmongers gaze on it for a time before turning away." —Sarlena, paladin of the Northern Verge

0/7

Legalities

standardpioneermodernlegacyvintagepaupercommanderbrawl

Rulings (2)

2014-07-18 Wall of Frost’s ability tracks the creature, not the creature’s controller. That is, if the creature changes controllers before its first controller’s next untap step, then it won’t untap during its new controller’s next untap step.
2014-07-18 If the creature isn’t tapped during its controller’s next untap step (perhaps because it was untapped by a spell), Wall of Frost’s ability has no effect at that time. It won’t try to keep the creature tapped on subsequent turns.