sejuani changes
the changes seem like a net nerf. Sejuani has to have 4000hp+ to have the same dmg as she used to, and this comes alongside a nerf to permafrost slow duration (which i currently max second for the slow increase). She will be slightly better in the midgame because of max HP rather than bonus hp damage, on flail, and might have a little bit of an easier time clearing the jungle, but it's not like any of these things need to come with a cost (the permafrost changes), since sejuani is (and has been for a long time) a sub-par jungle option.