Clefable @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Calm Mind
- Stored Power
- Moonblast
- Moonlight
Regieleki @ Light Clay
Ability: Transistor
EVs: 252 HP / 4 Atk / 252 Spe
Jolly Nature
- Light Screen
- Reflect
- Explosion
- Thunder Wave
Lapras @ Weakness Policy
Ability: Shell Armor
Gigantamax: Yes
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 0 Atk
- Sheer Cold
- Freeze-Dry
- Thunder
- Sparkling Aria
Cinderace @ Life Orb
Ability: Libero
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Pyro Ball
- Gunk Shot
- Sucker Punch
Garchomp @ Lum Berry
Ability: Rough Skin
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Outrage
- Fire Fang
- Swords Dance
Urshifu-Rapid-Strike @ Focus Sash
Ability: Unseen Fist
Gigantamax: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Surging Strikes
- Close Combat
- Aqua Jet
- Counter
The Leads:
Regieleki and Lapras are my two leads. Regieleki's speed tier makes it guarantee that it gets screens up, and Lapras is for more passive leads, for example, if they bring Grimmsnarl, another classic screen setter. Also a countermeasure against Landorus-Therian. Note that I will almost always max Lapras if I lead with it.
The Sweepers:
Cinderace, Garchomp, and Clefable are my three sweepers. If I bring Lapras, I almost have to max it, and plus Lapras' support isn't too great so I wanted to bring a mon that was really good at sweeping without max, or setting up. Thus, I brought Cinderace since Libero boosted attacks really hurt.
Garchomp is for when I bring Regieleki. Everyone knows the fundamental flaw with Garchomp is it's speed, and so when I bring Regieleki I can just start paralyzing faster threats for Garchomp to clean up. The Lum Berry is mainly for pesky Yawn users-I'm not very worried about Outrage confusing me since I'm likely to Max it anyways.
Finally, Clefable is the pokemon that contributes the least, mainly for stall teams, I brought it because Magic Guard is a nice ability against the likes of toxic and leech seed.
The Cleaner:
Urshifu-Rapid-Strike is suprisingly good at winning 1v1s with its sash, priority, and counter for pokemon that can one shot it. Rapid over Single because water coverage is much better than dark.
Thanks in advance.
Edits:
Urshifu-Rapid-Strike is replaced with Mimikyu since Mimikyu is better at winning 1v1s:
Mimikyu @ Kee Berry
Ability: Disguise
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Phantom Force
- Shadow Sneak
- Play Rough
Reuniclus over Clefable since it just has a better type matchup:
Reuniclus @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Recover
- Thunder
- Calm Mind
- Psyshock
Might bring shock wave over Thunder.