Rayquaza-Mega @ Choice Scarf  
Ability: Delta Stream  
EVs: 252 Atk / 4 Def / 252 Spe  
Naughty Nature  
- Dragon Ascent  
- V-create  
- Toxic  
- Hydro Pump  

Lunala @ Heavy-Duty Boots  
Ability: Shadow Shield  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Moongeist Beam  
- Will-O-Wisp  
- Toxic  
- Roost  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Spikes  
- Leech Seed  
- Knock Off  
- Toxic  

Necrozma-Dusk-Mane @ Heavy-Duty Boots  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Sunsteel Strike  
- Morning Sun  
- Knock Off  
- Stealth Rock  

Arceus @ Leftovers  
Ability: Multitype  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Judgment  
- Calm Mind  
- Shadow Ball  
- Recover  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 HP / 252 SpA / 252 Spe  
Rash Nature  
- Dark Pulse  
- Oblivion Wing  
- Heat Wave  
- Rock Slide