I created this team in the chat with help from PrimalKyogre, but I just wanted to see if I could improve it. It seems to be already doing well, though...
Marshadow @ Assault Vest
Ability: Technician
Jolly Nature
EVs: 252 Atk / 252 Spe / 4 SpD
- Spectral Thief
- Blaze Kick
- Pursuit
- Force Palm
Spectral Thief is wonderful and even helped me sweep once or twice (or thrice? Idk). Blaze Kick is because I should probably have a Fire type move on my team. Pursuit is there as a Dark type move, but feel free to replace it as I don’t actually use it too often. Force Palm is for Fighting type STAB, and paralysis is wonderful.
Lugia @ Leftovers
Ability: Multiscale
Timid Nature
EVs: 252 HP / 4 SpA / 252 Spe
- Defog
- Thunder Wave
- Recover
- Psychic
I originally just put it here as a Defogger, but it does surprisingly well (but should I be surprised?).
Zacian-Crowned @ Rusted Sword
Ability: Intrepid Sword
Jolly Nature
EVs: 252 Atk / 4 SpD / 252 Spe
- Behemoth Blade
- Sacred Sword
- Play Rough
- Wild Charge
Alright, I don't remember why Wild Charge is on it, but it doesn’t do bad at all.
Regieleki @ Assault Vest
Ability: Transistor
Hasty Nature
EVs: 4 Atk / 252 SpA / 252 Spe
- Thunder Cage
- Volt Switch
- Ancient Power
- Extreme Speed
This is the one I’m the least confident about. Ancient Power is for coverage, I guess.
Kyogre-Primal @ Blue Orb
Ability: Primordial Sea
Modest Nature
EVs: 252 HP / 252 SpA / 4 SpD
- Water Spout
- Origin Pulse
- Thunder Wave
- Ice Beam
Ironically, I stole this moveset from PrimalKyogre. It does a wonderful job.
Excadrill @ Air Balloon
Ability: Sand Rush
Adamant Nature
EVs: 252 Atk / 4 SpD / 252 Spe
- Swords Dance
- X-Scissor
- Iron Head
- Earthquake
I don’t really feel confident about this either. It’s not too good but it’s not too bad. I wouldn’t mind replacing it.