Alright here's my submission
Furry Bait (Incineroar) @ Air Balloon
Ability: Intimidate
EVs: 252 HP / 172 Atk / 84 Spe
Adamant Nature
- Fake Out
- Flare Blitz
- Knock Off
- Protect
Kommander O (Kommo-o) @ Assault Vest
Ability: Soundproof
EVs: 252 HP / 4 Def / 252 SpA
Modest Nature
IVs: 0 Atk
- Clanging Scales
- Aura Sphere
- Flash Cannon
- Draco Meteor
Scrotom (Rotom-Wash) @ Leftovers
Ability: Levitate
EVs: 252 HP / 164 SpA / 92 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Hydro Pump
- Protect
- Toxic
Lannister's Regards (Aegislash) @ Life Orb
Ability: Stance Change
Shiny: Yes
EVs: 252 HP / 4 Atk / 252 SpA
Quiet Nature
- Shadow Sneak
- Shadow Ball
- Flash Cannon
- King's Shield
Incineroar and Kommo-o is a core I've built around a few times now and it has yet to let me down, these two synergize so well. Vest Kom is bulky as all hell especially with intimidate support and it's coverage is great for this meta. Kommo-o handles sand basically all by itself but Air Balloon Incineroar helps out against excadrill. Mold breaker drill is a pain without that balloon so I prefer it to vest or sitrus. These two also defeat sun on their own which is super nice. Kom kills other Incineroar, Scrafty, ttar (rock types in general), other Kommo-o and if faked out, can ohko Garm with aura sphere. Incineroar deals with psychics, ghosts and just does Incineroar things. Kommo-o can't afford protect so it really appreciates fake out support to keep it protected for a turn. This is relevant a lot more often than you'd think.
Washtom and Incineroar are another duo that work off each other well. Washtom is pretty much a counter to rain on it's own, but does appreciate Kommo-o's help handling the likes of Dreadnaw. Washtom is also a pretty phenomenal ground check, mold breaker drill aside, which Incineroar really appreciates. In return Roar kills grasses which Washtom can't really hurt (Kommo-o also helps in this regard). It also handled Primarina pretty well which the others struggle with. The speed evs always outspeed max Pelliper to stop it ohkoing Kom with specs hurricane. This might seem niche but it's a losing mu otherwise and it's not that uncommon. Toxic is for Gastrodon which otherwise hardwalls Washtom and has good mus against everything else.
Aegislash is basically filling in holes, namely fairies and to a certain degree fightings but appreciates Kom and Tom dissuading fires, darks and grounds while Roar helps it against other ghosts. It doesn't play as big of a role and I'm not totally set on it's item but it does it's job well enough. Roar, Kom and Tom are the main core and cover so much between them that Aegislash doesn't need to carry to much of a load.
This team has gone through a lot of changes since it's creation back when home first came out. It originally had Milo and Drill and I was considering submitting it for samples but after Melms ban a lot of things became redundant so I threw out half of it and remade it andI'm pretty happy with the result. Also everyone else is naming theirs for some reason so I dub this team "Cat in a Washing Machine"
Here's some replays of the team at work I'll edit more in later if I get them
https://replay.pokemonshowdown.com/gen82v2doubles-1082943146
https://replay.pokemonshowdown.com/gen82v2doubles-1082952887