Alright. I’ll give you my advice.
Dondozo:
I’d highly suggest changing the item to Heavy-Duty Boots due to how vulnerable Dozo is to hazards and that this seems to be your main Kingambit / Zama check. I’d change the Tera to Fighting in order to check Gambit more efficiently, as it can run over this team after Valiant is removed.
Iron Valiant:
Iron Valiant @ Booster Energy
Ability: Quark Drive
Tera Type: Steel
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Moonblast
- Close Combat
- Knock Off
- Encore
This is the mixed set on Smogon. At the very least I’d suggest definitely changing the item to Booster Energy and the Tera to Steel. With Booster Energy Valiant can check Darkrai and
Zama. Problem is you already have Enamorus and you’re very vulnerable to Scarf Darkrai. You also need hazard control. I’d suggest either Tusk or Corviknight.
Great Tusk @ Heavy-Duty Boots
Ability: Protosynthesis
Tera Type: Ground
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Headlong Rush
- Ice Spinner / Close Combat
- Knock Off
- Rapid Spin
Typical Tusk that checks Kingambit very well. HDB makes sure you can still spin against Web teams or don’t die switching in. Ice Spinner is for Gliscor. Tera Ground boosts Headlong Rush. Tusk serves as a partial check to Scarf Darkrai, with Slowking-G support (I’ll get to that later).
Corviknight @ Leftovers
Ability: Pressure
Tera Type: Dragon
EVs: 248 HP / 8 Atk / 252 Def
Impish Nature
- Roost
- Brave Bird
- U-turn
- Defog
Corv also checks Darkrai pretty well. Brave Bird is there so that Ogerpon-W doesn’t setup for free. Tera Dragon can emergency check Ogerpon-W or Cinderace. U-Turn provides some very necessary pivoting for your fragile sweepers.
Clodsire:
This Mon is a momentum sink for your team. Every time you need to switch Clod out your fragile sweepers take significant damage. I’d suggest a different Special wall that fits well on balance and brings your sweepers in safety while applying a good amount of offensive pressure.
Slowking-Galar @ Heavy-Duty Boots
Ability: Regenerator
Tera Type: Water
EVs: 252 HP / 16 Def / 240 SpD
Sassy Nature
IVs: 0 Spe
- Future Sight
- Chilly Reception
- Sludge Bomb
- Thunder Wave
Another Smogon set. Future Sight pairs well with your Fairy sweepers Valiant and Enamorus. Chilly Reception is a really strong pivoting move. Thunder Wave provides excellent Speed control. Tera Water checks Walking Wake.
Dragapult:
Pretty fine. You can mold it to what you need. Tera Dragon is better than Ghost here. Ghost is only really used for the Band sets.
Rillaboom:
I’d change the item to Band. Grassy Glide is an extremely strong answer to faster sweepers like Valiant and Darkrai, and Band makes it hit harder. Here’s the Smogon set:
Rillaboom @ Choice Band
Ability: Grassy Surge
Tera Type: Grass
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Grassy Glide
- Wood Hammer
- U-turn
- Knock Off
—————-
Now I have a more fun choice, but it requires a teammate to be Hawlucha:
Rillaboom @ Terrain Extender
Ability: Grassy Surge
Tera Type: Grass
EVs: 204 HP / 252 Atk / 52 Spe
Adamant Nature
- Grassy Glide
- Knock Off
- U-turn
- Low Kick
Another Smogon set that has Rillaboom for its Grassy Terrain. This is great as it allows Great Tusk, Slowking-G, and Dondozo to passively heal. Knock Off makes progress + hits Gholdengo. U-Turn to pivot. Low Kick is for Kingambit.
Enamorus / Raging Bolt:
Either replace this or Iron Valiant for Tusk / Corv. If you replace Valiant, I would still suggest replacing this slot. You don’t need Enamorus Spec + Dragapult Spec, and Dragapult has a better Speed tier while checking Dragonite. Raging Bolt means your team has two Dragons and Bolt is more of an HO Mon too (not completely, I just see it more on HO structures). Great Tusk (if chosen) and Dragapult already check Dragons / Darks pretty well. So here’s two options:
Choice Band Rillaboom:
Kingambit:
Kingambit @ Leftovers
Ability: Supreme Overlord
Tera Type: Fairy /Flying / Fire
EVs: 212 HP / 252 Atk / 44 Spe
Adamant Nature
- Swords Dance
- Kowtow Cleave
- Sucker Punch
- Iron Head
Kingambit is an excellent late-game sweeper that really fits on any team. It also serves as a Kyurem and Dragapult check, while also absorbing Future Sight From Slowking-G. Tera Fairy and Flying are to buy setup opportunities from threats such as Great Tusk and Iron Valiant, while Tera Fire allows it to eat Will-O-Wisp from Dragapult and to set up against Cinderace.
Terrain Extender Rillaboom:
Hawlucha:
Hawlucha @ Grassy Seed
Ability: Unburden
Tera Type: Flying
EVs: 72 HP / 252 Atk / 60 SpD / 124 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Acrobatics
- Encore
Hawlucha and Rillaboom are excellent teammates. Rillaboom’s Terrain Extender paired with Grassy Seed and Unburden makes Hawlucha an extremely dangerous sweeper. Encore gives Hawlucha setup opportunities.
Hope this helps!