Rayquaza-Mega @ Choice Band  
Ability: Delta Stream  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- Extreme Speed  
- Crunch  
- Waterfall  

Xerneas @ Power Herb  
Ability: Fairy Aura  
Level: 50  
EVs: 228 HP / 132 Def / 28 SpA / 4 SpD / 116 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Dazzling Gleam  
- Geomancy  
- Protect  

Amoonguss @ Mental Herb  
Ability: Effect Spore  
Level: 50  
EVs: 236 HP / 116 Def / 156 SpD  
Sassy Nature  
IVs: 0 Spe  
- Grass Knot  
- Clamp  
- Spore  
- Rage Powder  

Incineroar @ Eject Button  
Ability: Intimidate  
Level: 50  
EVs: 236 HP / 4 Atk / 4 Def / 236 SpD / 28 Spe  
Careful Nature  
- Flare Blitz  
- Darkest Lariat  
- U-turn  
- Fake Out  

Tapu Fini @ Waterium Z  
Ability: Misty Surge  
Level: 50  
EVs: 252 HP / 44 Def / 196 SpA / 12 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Muddy Water  
- Moonblast  
- Icy Wind  
- Protect  

Stakataka @ Shuca Berry  
Ability: Beast Boost  
Level: 50  
EVs: 252 HP / 12 Atk / 244 SpD  
Brave Nature  
IVs: 0 Spe  
- Rock Slide  
- Gyro Ball  
- Trick Room  
- Protect