Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Lonely Nature  
- Dragon Ascent  
- V-create  
- Draco Meteor  
- Extreme Speed  

Diancie-Mega @ Choice Scarf  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Rash Nature  
- Diamond Storm  
- Earth Power  
- Moonblast  
- Heal Bell  

Groudon-Primal @ Leftovers  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 252 HP / 240 SpD / 16 Spe  
Careful Nature  
- Stealth Rock  
- Toxic  
- Precipice Blades  
- Dragon Tail  

Cramorant-Gorging @ Focus Sash  
Ability: Gulp Missile  
EVs: 252 HP / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Surf  
- Endure  
- Roost  
- Defog  

Zacian-Crowned @ Fightinium Z  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Behemoth Blade  
- Close Combat  
- Play Rough  

Arceus-Ground @ Dread Plate  
Ability: Multitype  
EVs: 248 HP / 136 SpD / 124 Spe  
Calm Nature  
IVs: 0 Atk  
- Foul Play  
- Ice Beam  
- Toxic  
- Recover