Zygarde @ Weakness Policy  
Ability: Power Construct  
EVs: 16 HP / 228 Atk / 32 SpD / 232 Spe  
Adamant Nature  
- Dragon Dance  
- Thousand Arrows  
- Substitute  
- Dragon Tail  

Arceus-Rock @ Stone Plate  
Ability: Multitype  
EVs: 240 HP / 144 SpD / 124 Spe  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Judgment  
- Recover  
- Will-O-Wisp  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 204 Def / 52 SpD  
Impish Nature  
- Toxic  
- Sacred Fire  
- Whirlwind  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 SpA / 100 SpD / 156 Spe  
Mild Nature  
- Eruption  
- Swords Dance  
- Stone Edge  
- Precipice Blades  

Rayquaza-Mega @ Choice Scarf  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Dragon Ascent  
- Draco Meteor  
- Surf  
- V-create  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Behemoth Blade  
- Wild Charge  
- Close Combat  
- Assurance