>>54026359Take a fucking guess why. Umbreon doesn't have a set that doubles the ability to throw games(because no, play rough+claw is not bad; it just doubles down on making zacian require more precision).
And Zacian has godawful pickrate from even before the nerf. Keep that factor in mind because "mirror winrate" is mostly what tanked for Zacian.
Probably because of retards saying it was suddenly balanced so a lot of those Zacian players who couldn't win even with it decided to fuck off. And the rest of the playerbase has huge stigma against it.