Now that Drizzle's gone and the powerful stall behind Hydration/Rest MIGHT get two uses at most per rain cycle, who thinks Manaphy might be a viable option again?
Manaphy was tested in Clear Skies OU (which was OU with all weather banned) in Gen 5. It was still too broken. I don't think it's been nerfed enough to the point that it might be OU again.
Weather as a team style is pretty much dead this gen.
"Sand teams" still exist because ttar only needs the sand for itself (and only for a few turns), and hippowdon is a great physical wall even without perma sand. They're both mons that would be OU or close to it because of their own qualities, rather than the support they give for a team.
Whereas ninetales/politoed are utter trash without their abilities (and tbh close to trash with them in OU at least), they only exist as support for the rest of the team.
Specstoed's probably going to tear up UU though lol.
Sure Charizard Y might still be around with its sun, but just because Charizard Y is on your team doesn't make it a sun team, because 5 turns of weather is not enough for anything else on your team to take advantage of.
Sun and Rain teams were very much alive in Gen 4, without Drizzle or Drought, and in the presence of Hippowdon and Tyranitar. Now you have Pokemon that can use the weather move by just switching in. True, some sweepers are dead (no more Venusaur sweeps), but, especially if/when SS+Drizzle is unbanned, those sweepers will be about as viable as they were in Gen 4 (maybe less since Gen 5 power creep happened).
Ninetales is still decent in OU with the nerfed Drought. Without Drought at all it might have been something like RU/upper NU in Gen 5, but Ninetales itself is not utter trash like Spinda or Delibird. It has support moves like Will-O-Wisp, Toxic, and Roar, and offensive Ninetales sets weren't really that good in Gen 5 anyways. In Gen 6 you now have to make the trade-off between Drought and something like Arcanine as a defensive/support Fire-type, and Drought is still good for support.
Politoed is almost utter trash without Drizzle, because there's so many other Water-types, albeit none with its kind of movepool. In Gen 5 we saw it take a support role mostly, thanks to moves like Perish Song and Toxic that it gets. There were also offensive versions. Politoed is still very usable in OU since it can summon its own Rain to power up its Surfs, Scalds, and Hydro Pumps. You can also play it as if you were playing a Gen 4 rain team.
Mega Charizard Y is really powerful since it can summon its own Sun to boost its Fire Blasts, similar to how Specs Politoed works.