Crobat is ok but I would add Taunt somewhere on there. (Over Cross poison) It makes a great lead and I think it outspeeds Azelf(?) and then can proceed to Taunt to stop the Rocks from coming. It's also great from stopping Gligar in its tracks, being able to Super Fang it and then KO or 2HKO with Brave bird. Also add more HP Evs. You don't need Max Attack to get Super Fang working, and extra HP is always useful on a Taunt Lead.
Dragon Dance on Scrafty isn't as good as Bulk Up. The speed is nothing when your base is only 55, meaning that even if you have one DD a pokemon like Virizion can come in and still outspeed and KO with Close Combat. I would put Bulk Up on there, it adds great defense as well as having much more speeping potential than DD does. Trust me, I've seen it. Also, get rid of those speed evs. Not all of them, maybe keep like 56 to outspeed other scraftys? I'm not sure what the common set for Bulky Up Scrafty is but make sure you can outspeed them. Put a lot of EVs into Special defense: You'll need and Bulk up already boosts defense anyway. And then some EV's into HP and attack, maybe a little into defense? Atk and Def aren't really important, play around with it a little and find what suits you best. Also run Lefties and Rest > Zen Headbutt
You have way to many defensive walls, Gligar and Blastoise mainly. Make this a special wall since it synerges well with gligar. Tbh, uxie is not a good lead unless the opponent is all out attack, then you can live a hit and use SR. otherwise, in uu there are so many taunt leads that using uxie 7/10 is a bad idea. However you don't have a wish passer, and in my opinion a wish passer in uu is sooo important. Because of this, I would make this a special umbreon and give rocks to gligar. Toxic can be substitute in for t-wave, however my set would be: Wish/Protect/Heal Bell/Foul Pay (or toxic)
This is good however run timid: chandy is too slow to be risking Modest.
Gligar is good however the EV's are a little off: The only point of those SpD evs are to survive... what? It tanks Aura Sphere's well enough and it maybe able to survive one ice beam from empoleon, but that's it. Max Def and Max SpD are the best options here as gligar cannot function in uu as a mixed wall. also give it rocks > taunt, it's low speed means it won't be taunting anything soon.
Blastoise is good, however again max hp and def is the best option here, unless you want a special wall?
Overall a very well balanced team, but with these simple suggestions it can function very well i believe.
Good luck with your team and remember: Have fun!
:)