BUR #22884 has been approved by @nonamethanks.
deprecate prestige_edition_(league_of_legends)
Catch-all tag for a type of skins in League of Legends, unlike most of their umbrella tags it catches a "rank" of skins instead of skins that are under the same theme like star guardian or battle academia. There're already a good amount of prestige_* tags in place and most of them are not tagged with prestige edition, probably lots of untagged posts too. So the tag is not particularly useful anyway. The only potential use of this tag is to catch fan-made prestige designs like post #6905680, but it's impossible to filter them from official prestige skins if they're kept under the same tag. We can give them a different tag, or a pool similar to League of Legends - Fan-Made Skin Ideas. I made sure that all of the posts under prestige edition have their skin tagged, the only one I failed to identify is post #3443357, might be a fan design.
I still have doubts that we even need the other catch-alls, but we'll start with this one.
tldr: The situation is similar to other skin catch-all tags we've deprecated in favor of individual chartags in the past, like the KanColle remodel tag. So I suggest we do something similar here.
A related question also came to my mind. Since prestige skins are derivatives of a base skin, should they imply the base skin or the base character? Most of them don't have any implication yet due to low post count but the few that do actually implicates the base character tag instead of the base skin tag. Such as prestige star guardian syndra -> syndra instead of prestige star guardian syndra -> star guardian syndra -> syndra. However tagging wise it's the opposite, I see a lot of the posts having both the prestige tag and the base skin tag. I know that layered chartag implication is mildly discouraged but in terms of tagging and search results what is the preferred option?
Updated