But you're not, you're just trying to pull out as many excuses as you can to say it can't work in Smash Bros when you get half of them wrong or misinterpret what I say to try and turn it against Sylveon's odds. And who said I prefer Sylveon over Mewtwo again? Seriously.
Look, I actually keep up with the popularity of Pokemon. Jigglypuff's popularity has dropped immensly in every category. It was not in the Top 100 most popular pokemon list, it's been forgotten by the anime, the world has pretty much stopped caring for Jigglypuff. So please, don't say that her popularity hasn't tanked when you have no proof to back it up.
Skull Kid is a NOT a main antagonist, MAJORA was a main antagonist. Skull Kid was a pawn, a puppet used by Majora and never really had any importance than pissing people off (In OoT, MM AND TP). And just because she's a servant/guard of Zelda she's not that important? Tingle is a freaky 35 year old man who spouts gibberish and sells you maps as he lives in the delusion of being a fairy...which is more important again? Impa's probably the most recurring Zelda character outside of Link, Ganondorf and Zelda, and is probably going to appear in future titles as well.