Delphox @ Air Balloon  
Ability: Magician  
Tera Type: Fire  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fire Blast  
- Focus Blast  
- Psyshock  
- Nasty Plot  

Slowbro  
Ability: Regenerator  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Body Press  
- Scald  
- Thunder Wave  
- Slack Off  

Meloetta @ Assault Vest  
Ability: Serene Grace  
Tera Type: Normal  
EVs: 248 HP / 32 Def / 176 SpA / 32 SpD / 20 Spe  
Modest Nature  
- U-turn  
- Focus Blast  
- Shadow Ball  
- Grass Knot  

Iron Boulder @ Choice Scarf  
Ability: Quark Drive  
Tera Type: Rock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Mighty Cleave  
- Zen Headbutt  
- Earthquake  
- Close Combat  

Latios (M) @ Soul Dew  
Ability: Levitate  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Luster Purge  
- Ice Beam  
- Thunderbolt  

Hatterene (F) @ Heavy-Duty Boots  
Ability: Magic Bounce  
Tera Type: Psychic  
EVs: 252 HP / 252 Def  
Bold Nature  
IVs: 0 Atk  
- Draining Kiss  
- Psyshock  
- Calm Mind  
- Trick Room