Tapu Koko @ Choice Specs  
Ability: Electric Surge  
Tera Type: Electric  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Thunderbolt  
- Dazzling Gleam  
- Volt Switch  
- U-turn  

Tyranitar-Mega @ Tyranitarite  
Ability: Sand Stream  
Tera Type: Rock  
EVs: 216 HP / 200 Atk / 92 Spe  
Adamant Nature  
- Stealth Rock  
- Stone Edge  
- Knock Off  
- Pursuit  

Ogerpon-Wellspring (F) @ Wellspring Mask  
Ability: Water Absorb  
Tera Type: Water  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Ivy Cudgel  
- Trailblaze  
- Superpower  

Moltres @ Heavy-Duty Boots  
Ability: Flame Body  
Tera Type: Water  
EVs: 248 HP / 156 Def / 104 SpD  
Bold Nature  
- Flamethrower  
- U-turn  
- Roar  
- Roost  

Great Tusk @ Icium Z  
Ability: Protosynthesis  
Tera Type: Fairy  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Rapid Spin  
- Close Combat  
- Headlong Rush  
- Ice Spinner  

Serperior @ Leftovers  
Ability: Contrary  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Dragon Pulse  
- Hidden Power [Fire]  
- Glare