A one-off character from Super Mario RPG that SmashFAQs can't stfu about already. If he happens by some wish upon a star, great for those who wanted him for so long. Personally, I'd rather have the following list of characters next that I'd say have a realistic chance of being a possibility in Smash:
Dante or Phoenix Wright
Travis Touchdown
Mach Rider
Axel from Streets of Rage
Whoever they will end Smash Ultimate with
Geno...that wooden wizard puppet dude from that old Paper Mario predecessor? Why would anyone care about such a bland character?
Phoenix Wright would be much preferable, since ALL of his games have been released on Nintendo systems - particularly the 3DS - along with all of the side games (which have an unfortunate trend of
not being localised; AA Investigations 2, the "Feudal Japan + Sherlock Holmes" duo - why not rename the guy to Herlock Sholmes or something?).
Dunno any of the rest, though.
I'd also take Rex + Pyra (with Mythra being an alt costume) and/or Professor Layton (all his games have been released on Nintendo handhelds). Ōkami would also be nice.