Rayquaza @ Focus Sash  
Ability: Air Lock  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- Earthquake  
- Extreme Speed  
- Swords Dance  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 152 HP / 40 Atk / 88 Def / 228 Spe  
Adamant Nature  
- Autotomize  
- Earthquake  
- Sunsteel Strike  
- Photon Geyser  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 56 Def / 202 SpD  
Relaxed Nature  
- Precipice Blades  
- Overheat  
- Stealth Rock  
- Roar  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 80 Def / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Ice Beam  
- Recover  
- Defog  

Xerneas @ Choice Specs  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Thunder  
- Focus Blast  
- Aromatherapy  

Marshadow @ Marshadium Z  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Close Combat  
- Rock Tomb  
- Shadow Sneak