Challenger Troll
Creature — Troll
Each creature you control with power 4 or greater can't be blocked by more than one creature.
For most, war is a calamity. For some, an opportunity. And for the very few, a pleasure.
Svetlin Velinov
Ravnica: Clue Edition (CLU)
• #159Rulings
If a creature you control with power 4 or greater has menace, it can’t be blocked by only one creature and it can’t be blocked by more than one creature, so it simply can’t be blocked.
(wotc • 2019-05-03)
Once a creature you control with power 3 or less has become blocked by two or more creatures, changing its power won’t cause either blocking creature to stop blocking it.
(wotc • 2019-05-03)
Challenger Troll’s ability affects itself as long as its power remains 4 or greater.
(wotc • 2019-05-03)
Rulings
If a creature you control with power 4 or greater has menace, it can’t be blocked by only one creature and it can’t be blocked by more than one creature, so it simply can’t be blocked.
(wotc • 2019-05-03)
Once a creature you control with power 3 or less has become blocked by two or more creatures, changing its power won’t cause either blocking creature to stop blocking it.
(wotc • 2019-05-03)
Challenger Troll’s ability affects itself as long as its power remains 4 or greater.
(wotc • 2019-05-03)