Groudon @ Life Orb  
Ability: Drought  
Tera Type: Steel  
EVs: 112 HP / 252 Atk / 144 Spe  
Adamant Nature  
- Swords Dance  
- Precipice Blades  
- Stone Edge  
- Crunch  

Blissey @ Heavy-Duty Boots  
Ability: Natural Cure  
Tera Type: Dark  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Soft-Boiled  
- Seismic Toss  
- Toxic  

Giratina-Origin @ Griseous Core  
Ability: Levitate  
Tera Type: Steel  
EVs: 244 HP / 124 Def / 96 SpA / 44 Spe  
Modest Nature  
- Defog  
- Will-O-Wisp  
- Hex  
- Dragon Tail  

Alomomola @ Rocky Helmet  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Protect  
- Wish  
- Toxic  
- Flip Turn  

Pheromosa @ Choice Scarf  
Ability: Beast Boost  
Tera Type: Fighting  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Close Combat  
- Triple Axel  
- Throat Chop  
- U-turn  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
Tera Type: Rock  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Moonblast  
- Mystical Fire  
- Substitute  
- Diamond Storm