Diancie-Mega @ Diancite  
Ability: Magic Bounce  
Tera Type: Rock  
EVs: 32 Atk / 224 SpA / 252 Spe  
Hasty Nature  
- Diamond Storm  
- Earth Power  
- Mystical Fire  
- Moonblast  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
Tera Type: Grass  
EVs: 248 HP / 112 Def / 148 SpD  
Careful Nature  
- Knock Off  
- Power Whip  
- Spikes  
- Leech Seed  

Slowbro @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Scald  
- Future Sight  
- Teleport  
- Slack Off  

Volcarona @ Heavy-Duty Boots  
Ability: Flame Body  
Hidden Power: Ground  
Tera Type: Bug  
EVs: 248 HP / 200 Def / 60 Spe  
Timid Nature  
IVs: 0 Atk  
- Quiver Dance  
- Flamethrower  
- Bug Buzz  
- Roost  

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

Garchomp @ Dragonium Z  
Ability: Rough Skin  
Tera Type: Dragon  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Outrage  
- Stealth Rock