Is cornerstone mask ogerpon ex supposed to be able to hit farigiraf ex?

Hamchops

played a game and farigiraf ex was able to get damage by cornerstone mask ogerpon ex. Is this a bug or is there a rule I’m not aware of?

10types

Conerstone Mask Ogerpon ex hits through effects on the defending pokemon and would therefore damage farifiraf ex

TechHog

https://community.pokemon.com/en-us/discussion/comment/42805#Comment_42805

The attack can hit through any and all protection effects. It's not related to the Ability at all.

Hamchops

Thank you was just wondering. Was flabbergasted when it happened.

So does Cornerstone ogerpon’s ability essentially cancel out other Pokémon with ability’s similar to the one found on Farigiraf ex(Armor Tail)?

I did discover that a cornerstone can hit another cornerstone.