Miraidon @ Choice Specs  
Ability: Hadron Engine  
Tera Type: Electric  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Electro Drift  
- Volt Switch  
- Draco Meteor  
- Overheat  

Xerneas @ Power Herb  
Ability: Fairy Aura  
Tera Type: Fire  
EVs: 248 HP / 4 Def / 132 SpA / 4 SpD / 120 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Dazzling Gleam  
- Protect  
- Geomancy  

Incineroar @ Assault Vest  
Ability: Intimidate  
Tera Type: Bug  
EVs: 228 HP / 4 Atk / 100 Def / 124 SpD / 52 Spe  
Impish Nature  
- Flare Blitz  
- Knock Off  
- U-turn  
- Fake Out  

Smeargle @ Focus Sash  
Ability: Moody  
Tera Type: Ghost  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Wide Guard  
- Spiky Shield  
- Follow Me  
- Fake Out  

Rayquaza-Mega @ Assault Vest  
Ability: Delta Stream  
Tera Type: Dragon  
EVs: 248 Atk / 20 SpA / 240 Spe  
Hasty Nature  
- Dragon Ascent  
- Earth Power  
- Extreme Speed  
- Draco Meteor  

Chi-Yu @ Choice Scarf  
Ability: Beads of Ruin  
Tera Type: Ghost  
EVs: 188 HP / 32 Def / 36 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Snarl  
- Heat Wave  
- Overheat  
- Dark Pulse