Dialga @ Life Orb  
Ability: Pressure  
Level: 50  
EVs: 252 HP / 236 SpA / 20 SpD  
Modest Nature  
IVs: 0 Atk  
- Flash Cannon  
- Trick Room  
- Roar of Time  
- Earth Power  

Volcarona @ Focus Sash  
Ability: Flame Body  
Level: 50  
EVs: 116 HP / 52 Def / 100 SpA / 4 SpD / 236 Spe  
Modest Nature  
IVs: 0 Atk  
- Overheat  
- Rage Powder  
- Quiver Dance  
- Hurricane  

Hitmontop (M) @ Eject Button  
Ability: Intimidate  
Level: 50  
EVs: 244 HP / 252 Atk / 4 Def / 4 SpD / 4 Spe  
Adamant Nature  
- Close Combat  
- Fake Out  
- Wide Guard  
- Feint  

Glastrier @ Assault Vest  
Ability: Chilling Neigh  
Level: 50  
EVs: 252 HP / 252 Atk / 4 Def  
Brave Nature  
IVs: 0 Spe  
- Icicle Crash  
- Close Combat  
- Heavy Slam  
- High Horsepower  

Grimmsnarl @ Light Clay  
Ability: Prankster  
Level: 50  
Gigantamax: Yes  
EVs: 244 HP / 4 Atk / 116 Def / 124 SpD / 20 Spe  
Careful Nature  
- Spirit Break  
- Fake Tears  
- Reflect  
- Light Screen  

Porygon2 @ Eviolite  
Ability: Download  
Level: 50  
EVs: 244 HP / 36 Def / 12 SpA / 212 SpD  
Sassy Nature  
IVs: 0 Atk  
- Shadow Ball  
- Trick Room  
- Recover  
- Tri Attack