So, lot of information we have now.
It's been a hell of a rollercoaster ride, this past week. What initially seemed like a barely unique disappointment turned out to still be pretty interesting. Then we speculated about a counterpart form, learned one probably doesn't exist, found out this was a Delphox-like case of good art screwed up by a bad ingame model, heard the frustrating news that it's pulling a Zoroark and being event-only for its debut...there've been a lot of ups and downs.
It may be a while before Dusk Lycanroc is viable in its home series...and yet, the way this is being set up may actually improve its chances of being in
other competitive games. After all, why hype this up so much, have it debut in the anime despite being mid-generation, then give it all the pomp and circumstance of being event-exclusive at first, and even have
a freaking plush toy announced
already, if it's not meant to be a big deal? The fact that it's being treated this highly right off the bat, plus potentially being Ash's signature 'mon for the Alola region (what with his being the first of its kind in the anime canon), means the odds have risen quite a bit that it'd be on the short list of Gen 7 mons to be considered as Smash newcomers. And since the placeholders in the PGL have been there since last November, we've reason to believe they've had this all planned since last year, when development on "Smash 4 Deluxe" or whatever they're up to may have began!
It may not have been quite what we expected, but this may have worked out in our favor yet.
As far as how Dusk Lycanroc would fight conceptually, I'd imagine something a lot like how we pictured Midday fighting, but altered a bit to fit its lore once they actually release said lore. A quadrupedal build would be unusual in Smash, but not entirely impossible--we've seen the likes of Pikachu and Duck Hunt carry items with their mouths before, and while it
technically shouldn't be possible to swing a hammer or operate a ray gun with just your teeth, it's easy enough to handwave in a context that's already pretty silly, at least enough for it to not be a deal breaker.