Does Covert Cloak apply to critical hit boosting moves?

Question

Me and a friend were having a battle, she was using a Meowscarada and never hit a crit on Night Slash. My Dondozo had a Covert Cloak. So, do critical hit boosting moves negate from Covert Cloak?

Comments

I don't think so, since a hightened crit chance from the likes of Night Slash and Stone Edge aren't considered as "secondary effects", like Burn or Flinch. Someone prolly should test this on Showdown tho or do some digging

Answer 1

Covert Cloak protects the holder from the additional effects of other Pokémon's damaging moves.

Covert Cloak (Bulbapedia)

Night Slash isn't listed on the list of moves with additional effects, so it's safe to say Covert Cloak doesn't take critical hit odds into account.