Why are there three abilities in Sun and Moon that block priority moves?

Question

And why do they have different descriptions?

Comments

Oh, okay. (12 characters)

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Back in Generation 6, Talonflame was the 3rd most used Pokemon in BS Singles.

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There is like, 100 counters for Talonflame.

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There is at least 100 counters for every Pokemon.

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alas poor talonflame, i knew him.

Answer 1

the same reason they added dark and fairy typing. dark was to nerf the overpowered psychic type. it worked too. several generations later we have a fairy type which can pawn both now overpowered dragons and dark types. same with priority. its to much of a staple to not give a few Pokemon better defence (or worse offence) for priority moves.

Comments

This answer actually answers the question so this is the BA.

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omigod i got BA!!!! first ever BA!!!

Answer 2

I don't think there's a good reason for it. Some are just for a gimmick. Like queenly majesty. No real reason for it, just to go along with the Pokemon.

Comments

How do I choose?

Answer 3

As a few comments mention, the reason why there are abilities that prevent priority moves from happening is to "nerf" them. You, also mention "different descriptions". Basically, these abilities do the same thing as the ability or abilities with the same or similar description, but are under a different name. Like Solgaleo's Full Metal Body ability being fairly similar to Clear Body and White Smoke. Also, like Lunala's Shadow Shield ability being fairly similar to Multiscale.

Comments

I say we start a petition for the option of selecting a Best Comment.

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...Meh...I don't know.

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I didn't actually read any of the answers and I finally decided to but this answer kinda goes out of topic.

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Your question was in regard to abilities and that some have the same description. I answered that!

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Yours went a little out of topic.