Veno.

Whirlipede @ Eviolite
Ability: Speed Boost
EVs: 232 HP / 24 SpD / 252 Spe
Jolly Nature
- Toxic Spikes
- Spikes
- Steamroller
- Poison Jab

tspikes and die, unless they have a spinner.

Baltoy @ Eviolite
Ability: Levitate
EVs: 252 HP / 232 Def / 24 SpD
Calm Nature
- Stealth Rock
- Rapid Spin
- Toxic
- Psychic

Spin rocks away to keep sash in tact. Set up rocks if possible. Toxic flying types. Never use Psychic lol.

Swalot @ Black Sludge
Ability: Sticky Hold
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
- Venom Drench
- Venoshock
- Yawn
- Ice Beam

Yawn the pokemon that are immune to toxic, beam the flying types (altaria 65.9 - 78.3% weak lol), then Venoshock if you can kill, Venom Drench when you gonna die so the next mons can setup.

Drifblim @ Petaya Berry
Ability: Unburden
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
- Substitute
- Calm Mind
- Shadow Ball
- Hidden Power [Fighting]

Setup 1: Speed and SpA, O.K. coverage w/ Ghost and Fighting. Does pretty good damage at +2, dies to priority

Serperior @ Life Orb
Ability: Overgrow
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Calm Mind
- Substitute
- Giga Drain
- Hidden Power [Rock]

Setup 2: Speed and SpA, bad coverage. Sub up while they switch/do 0 damage. Outspeed with base 113 Spe and knock stuff out with some boosts. Overgrow for power after sub.

Barbaracle @ Focus Sash
Ability: Tough Claws
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Shell Smash
- Stone Edge
- Razor Shell
- Night Slash

Setup 3: This one is interesting, as it doesn't work all too often. Water/Rock is perfect coverage in pu iirc. Night Slash for Gourgeist, but youre prolly getting burned because you dont ohko w/o spikes