Magnezone @ Chople Berry  
Ability: Magnet Pull  
EVs: 248 HP / 212 Def / 48 SpA  
Bold Nature  
IVs: 0 Atk  
- Substitute  
- Thunderbolt  
- Toxic  
- Flash Cannon  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  / Outrage
- Morning Sun / Stone Edge / X-Scissor / Rock Blast /  Outrage

Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Dragon Dance / Draco Meteor  
- Dragon Ascent  
- Earthquake  / V-Create
- Extreme Speed  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
IVs: 20 Spe  
- Overheat  
- Stealth Rock  
- Precipice Blades  
- Roar  / Rest / Toxic

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Timid Nature  
- U-turn  
- Oblivion Wing  
- Dark Pulse  
- Foul Play  / Toxic

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
EVs: 248 HP / 44 Def / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Defog  / Wil-o-Wisp
- Toxic  

OPTIONAL

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Photon Geyser  
- Morning Sun / Power Gem / Dragon Pulse 
- Heat Wave