Not sure how to rate this stat wise but here's my opinion on the moveset.
For sceptile, if your using the swords dance set try switching frenzy plant with acrobatics and give it a flying/grass gem. 2 acrobatics are better than 1 frenzy plant.
for hydreigon, since you gave it work up, you should give it a regular attack to take advantage of the attack boost. Not sure what move though. Also, another option instead of Draco meteor is D. Pulse since you don't lose your boost from work up.
For unefezant, it doesn't really have any reliable strong moves unfortanatly. It's stronger attacks all need charging. So maybe you can try switching fly with u-turn. Taunt is another decent option for it.
For aerodactyl, it would make a good lead if you gave it stelth rocks. Also switch acient power for rock slide/ stone edge since it's sp. Attack isn't that good. Instead of sky drop, you can use earthquake. It can also learn taunt and roost. They work on aero as well.
For rotom, it has a good moveset. Switching discharge for will o wisp would be better though. It can also learn pain split if it needs some kind of recovery.
For darmanitan, I would get rid of will o wisp and give it flare bliz. It's pretty frail so it's better off attacking. It can't really do anything with the sp. Atk boost from work up but it is his only power up move I think. Earthquake uturn and rock slide are other options.
Hope you find this helpful
Much Doge. Wow