Heracross-Mega @ Heracronite  
Ability: Moxie  
Tera Type: Bug  
EVs: 252 HP / 252 Atk / 4 Spe  
Adamant Nature  
- Bullet Seed  
- Close Combat  
- Rock Blast  
- Protect  

Diancie @ Life Orb  
Ability: Clear Body  
Tera Type: Grass  
EVs: 252 HP / 152 Atk / 104 SpA  
Brave Nature  
IVs: 0 Spe  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect  

Raging Bolt @ Assault Vest  
Ability: Protosynthesis  
Tera Type: Electric  
EVs: 252 HP / 252 SpA / 4 Spe  
Modest Nature  
IVs: 20 Atk  
- Volt Switch  
- Thunderclap  
- Thunderbolt  
- Draco Meteor  

Jirachi @ Sitrus Berry  
Ability: Serene Grace  
Tera Type: Water  
EVs: 252 HP / 180 Def / 76 SpD  
Careful Nature  
- Follow Me  
- Stealth Rock  
- Iron Head  
- Life Dew  

Marshadow @ Life Orb  
Ability: Technician  
Tera Type: Normal  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Shadow Sneak  
- Close Combat  
- Protect  

Tornadus (M) @ Flyinium Z  
Ability: Prankster  
Tera Type: Flying  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Bleakwind Storm  
- Tailwind  
- Taunt  
- Protect