Never seen Kyurem much in Tier Shift. Doubles, IDK, don't play it much.
Reptile, me and Sewa were theorymoning on Joim's Lab about what would be the better Technician user, Weavile or Mamoswine. Weavile has more options: Fake Out, Ice Shard, Beat Up, Pursuit... but swapping Pressure/Pickpocket onto another mon is tricky. Maybe Porygon2? The Volt Absorb thing was a wacky idea I came up with to give Download to Thundurus-I and... wait for it - Hydration to Snorlax. Whereas either Porygon2 or as Sewa suggested, Vaporeon gets Immunity instead.
Download Thundurus-I and Tornadus are two things I've had on my mind for quite a while, of which one I've already used - Download Thundurus-I, with Volt Absorb as well as Magic Guard Gyarados, but IDK about Tornadus. Weaker typing in exchange for slightly better Attack, Weaker SpA, and higher speed which is always good for a wallbreaker. Thing is, I first thought of Download Thundurus-I because of Alakazam just barely missing out on KOs, but this may not be a problem for something with 145 SpA....
Thundurus-I also has access to the same options Tornadus does - U-turn and Superpower. I know what you're thinking, no Volt Switch, but it's Download and electric stab is kinda redudant with Thunderbolt. So a mixed set composing of U-turn over Volt Switch, and Superpower over Focus Miss, with Thunderbolt/Thunder in rain and HP Ice might be decent. Infernape can also pull this off on sun/sand/weatherless teams, with pros and cons - higher speed, lack of SR weakness, but lower SpA. It does however have access to two good Dual STABs in Overheat and Close Combat, and a much more expansive movepool.
When keeping Drizzle on Politoed I think Hydration CurseLax can be a decent idea if pulled off right.
Just gonna say Porygon2 seems to be pretty common in this meta due to three good swappable abilities and still decent defenses. I've used him in quite a few teams. Intimidate is pretty good.
As for Ice Body... what about Walrein instead of Glalie ? If used to counter rain, it would take