Pathmaker Initiate
From Amonkhet set
Pathmaker Initiate
Creature — Human Wizard
2/1
: Target creature with power 2 or less can't be blocked this turn.
Rulings
- If the creature's power is greater than 2 as the activated ability tries to resolve, the ability won't resolve and none of its effects will happen. However, if instead the creature's power is raised above 2 after the ability resolves, it still can't be blocked that turn.