Ignoring the fact that it's in the wrong format, I seriously doubt this set is effective. Why use Sandstorm and Smooth Rock at all when you have Hippowdon and Tyranitar?
Why would you use Sunny Day Scizor when that amplifies its only weakness? Not even counting the fact that Sun is a horribly unreliable tactic that is more or less never seen in OU...
Rain Dance Scizor as a lead is beaten by pretty much every other common lead. With your given EV spread Lead Infernape will Fake Out and Fire Blast will roast you. Assuming you even use Rain Dance, Fire Blast is still hitting you for 116% - 137.8%
Azelf can just Taunt you to stop you Rain Dancing and potentially even Fire Blast since you're doing 37.5% - 44.7% with Bullet Punch.
Even if this set were not in a Lead, it would still have difficulty operating efficiently. Assuming you Rain Danced on the switch, the following still does to you:
Standard Nasty Plot Infernape Flamethrower: 119.6% - 141.4%
Standard MixNite Flamethrower: 82.2% - 96.7%
Substitute Gengar HP Fire: 53.2% - 62.8%
heck, even Physically Defensive Zapdos is doing 60.4% - 71.3% with Heat Wave
and consdering you have Bullet Punch as your only move, that's not a good position to be in.
You've also got Roost and Swords Dance/Substitute as well, which I fail to see the point of, since you aren't going to be outroosting anything except maybe ScarfFlygon Fire Blast, which does 44.7% - 53.2% and can just wait for the rain to stop. Swords Dance Bullet Punch won't be taking down any of these threats either, not Infernape, not Heatran. You might get away with a KO on some of the dragons but they'll likely be too busy trying to torch you before they let you get a Swords Dance. and if you SD instead of RD on the switch, then you might as well be using a SD sweeper.
I don't think Scizor should be wasting its time with Rain Dance at all, not without something along the lines of Max Attack and Max HP with U-Turn.
I might not be QC but I'm sure this set won't get passed.