Not a full check yet, just a few things I've noticed in your skeleton.
- Its not strictly outclassed by Fraxure as a Dragon Dancer, as it can actually use Rest effectively.
- You dont need to mention the exact defensive stats, just emphasizing that they are good is sufficient.
- EV comments go into AC, not in Set Comments.
- Remove Facade lol
- For the first set mention a few things that Dragonair can actually wall and start paralysing stuff on. It lost a huge niche when Magmortar left the metagame, what does it accomplish now?
- You have slashed ExtremeSpeed, so it should be mentioned in Set Comments, not AC.
- I would mention Marvel Scale with Rest and Sleep Talk over ES / Waterfall. Those massive defenses can be good for setting up, while not having to rely on Shed Skin activating can be beneficial. Sleep Mechanics are an asshole, but at least you're not a complete sitting duck with Sleep Talk.
Looking good so far, I'm sure some other QC members have stuff to say about it!