Sneaking Guide
Creature — Goblin Rogue
, 
: Target creature with power 2 or less can't be blocked this turn.
"I swear, it's a shortcut."
Dan Murayama Scott
Zendikar Rising (ZNR)
• #164Rulings
Once a creature with power 2 or less has been blocked, Sneaking Guide’s ability won’t cause it to become unblocked.
(wotc • 2020-09-25)
If the target creature’s power is greater than 2 as Sneaking Guide’s ability tries to resolve, the ability doesn’t resolve. However, if instead the creature’s power is raised above 2 after the ability resolves, it still can’t be blocked that turn.
(wotc • 2020-09-25)
Rulings
Once a creature with power 2 or less has been blocked, Sneaking Guide’s ability won’t cause it to become unblocked.
(wotc • 2020-09-25)
If the target creature’s power is greater than 2 as Sneaking Guide’s ability tries to resolve, the ability doesn’t resolve. However, if instead the creature’s power is raised above 2 after the ability resolves, it still can’t be blocked that turn.
(wotc • 2020-09-25)