Rotom-Wash @ Leftovers  
Ability: Levitate  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Hydro Pump  
- Volt Switch  
- Defog  
- Pain Split  

Heatran @ Leftovers  
Ability: Flash Fire  
Tera Type: Grass  
EVs: 252 HP / 196 SpD / 60 Spe  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Taunt  
- Stealth Rock  

Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Pressure  
Tera Type: Psychic  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Flamethrower  
- Ice Beam  
- Nasty Plot  

Tapu Koko @ Heavy-Duty Boots  
Ability: Electric Surge  
Shiny: Yes  
Tera Type: Fairy  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Thunderbolt  
- Dazzling Gleam  
- U-turn  
- Roost  

Buzzwole @ Rocky Helmet  
Ability: Beast Boost  
Tera Type: Dark  
EVs: 240 HP / 8 Def / 252 SpD / 8 Spe  
Careful Nature  
- Drain Punch  
- Ice Punch  
- Bulk Up  
- Roost  

Iron Hands @ Leftovers  
Ability: Quark Drive  
Tera Type: Fighting  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Wild Charge  
- Close Combat  
- Ice Punch  
- Swords Dance