Okay Riles, I know you said it wasn't working out so well, but you didn't tell me what exactly the problems were, as you won the battle I watched. So I'll just be correcting some of the smaller issues I see in this team. Let's do it :]
Politoed
I don't want to upset TKOR himself, but I'm going to go right out and say it: Politoed without Drizzle is dead weight to you. He's only in OU because of Drizzle. On top of that, he has mediocre special attack and speed, and his water-type STAB is nullified by the sun. So, I have an idea for a replacement, who can fulfil the same role and more.
Gastrodon (M) @ Leftovers
Trait: Storm Drain
EVs: 252 HP / 252 SDef / 4 Def
Calm Nature (+SDef, -Atk)
- Scald
- Earthquake
- Toxic
- Recover
This guy is great, he has immunities to Water and Electric, a resistance to Rock, and fantastic special defense to back it up. This makes him one of the most solid checks to weather teams of other kinds that you may have trouble with. Scald is for the burn chance, Earthquake for STAB, and Toxic & Recover for stalling.
Raikou
Looks fine, although keep in mind Raikou with Weather Ball and Aura Sphere must have a Rash nature.
Ninetales
Hmm. Personally, I prefer not relying on the dodgy accuracy of Hypnosis. Also, Ninetales isn't going to be hitting anything very hard with base 81 Special Attack and no investment. I think Nasty Plot would be a better choice for that slot. Otherwise looks good.
Claydol
Perfect! Actually, I might give it Ice Beam instead, I think it's more useful. Not like Claydol's really going to hit hard enough to need his dual STABs.
Dragonite
Superpower's attack drops are kind of counter intuitive for a Dragon Dance sweeper, and the lowered defense make it even easier for Mamoswine and friends to revenge kill you with Ice Shard. So, replace it with Earthquake, Extremespeed, or even Roost to get back to your Scale and come back for a second sweep.
Sawsbuck
Well, Sawsbuck is pretty good. Although I still think you should have chosen Tangrowth :/ jk, but give him Double Edge over Wild Charge, can't believe we forgot about his great second STAB. However, I have thought of some replacements:
Shiftry (M) @ Life Orb
Trait: Chlorophyll
EVs: 252 Atk / 252 Spd / 4 SDef
Adamant Nature (+Atk, -SAtk)
- Swords Dance
- Sucker Punch
- Seed Bomb
- Low Kick
This guy is able to get past two of the biggest pains to sun teams, the Lati twins. I'm pretty sure he OHKOs with Sucker Punch at +2. Also, he has perfect coverage, especially on Heatran, another mon that can be very frustrating to deal with with sun-based pokemon.
Victreebel (M) @ Life Orb
Trait: Chlorophyll
EVs: 112 Atk / 144 SAtk / 252 Spd
Hasty Nature (+Spd, -Def)
- Growth
- Leaf Blade
- Sludge Bomb
- Weather Ball
Pretty nice mixed set here, he can get past the blobs, Tyranitar and Politoed with Leaf Blade, and has nearly perfect coverage, but unfortunately he is walled by Heatran, like some others on this team. He does have the advantage over Sawsbuck and Shiftry in not being weak to Mach Punch.
Anyway, that's all I could think of, hope I helped! :]