Everything seems mostly fine, except a few things I'd like to point out
1.) Rillaboom is way too slow to be a setup sweeper. I would probably replace acrobatics with U-Turn and SD with Wood Hammer. Also, if you do decide to make that change, you should also make it Adamant wth/ Choice Band and 252 HP/252 Atk/4 Def.
2.) Kommo-o isn't very good because a.) it's pretty slow and b.) it's 4x weak to Fairy. Also, if you have to keep the Kommo-o, you should probably replace Outrage with something else. You don't want to let Togekiss switch in and set up on you. I would most likely replace it with a wish passer, for your slow, bulky mons.
Clefable @ Leftovers
Ability: Magic Guard
Bold Nature
EVs: 252 HP/252 Def/4 SpD
IVs: 0 Atk
-Teleport
-Moonblast
-Wish
-Protect
You can also run Unaware, but I think Magic Guard is better because it nullifies burn/poison damage and hazards, which can add up when you're switching in and out often. You can also run a defogger instead. Mandibuzz wth/ heavy-duty boots is the best defogger in OU rn, so there's that.
Also, if you make Rillaboom CB, you should probably make Urshifu Scarfed, for Dragapult, Hydreigon, etc.