Steelix-Mega @ Steelixite  
Ability: Sturdy  
Tera Type: Steel  
EVs: 248 HP / 24 Atk / 60 Def / 176 SpD  
Careful Nature  
- Curse  
- Heavy Slam  
- Earthquake  
- Stone Edge  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
Tera Type: Electric  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Thunderbolt  
- U-turn  
- Roost  
- Hidden Power [Ice]  

Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Water  
EVs: 4 HP / 252 Def / 252 SpD  
Relaxed Nature  
- Wish  
- Flip Turn  
- Protect  
- Toxic  

Heatran @ Leftovers  
Ability: Flash Fire  
Tera Type: Fire  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Magma Storm  
- Toxic  
- Earth Power  

Tornadus-Therian (M) @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Flying  
EVs: 184 HP / 108 Def / 216 Spe  
Timid Nature  
- Bleakwind Storm  
- U-turn  
- Knock Off  
- Defog  

Tapu Lele @ Choice Scarf  
Ability: Psychic Surge  
Tera Type: Psychic  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psychic  
- Moonblast  
- Focus Blast  
- Psyshock