Giratina-Origin @ Griseous Orb  
Ability: Levitate  
Shiny: Yes  
EVs: 184 HP / 252 Def / 56 SpA / 16 Spe  
IVs: 0 Atk  
- Toxic  
- Hex  
- Draco Meteor  
- Defog  

Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Insomnia  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Thunderbolt  
- Calm Mind  
- Skill Swap  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Judgment  
- Calm Mind  
- Toxic  
- Recover  

Groudon @ Red Orb  
Ability: Drought  
EVs: 252 HP / 4 Atk / 196 Def / 56 SpD  
Impish Nature  
- Stealth Rock  
- Overheat  
- Toxic  
- Precipice Blades  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 48 HP / 252 Atk / 208 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Photon Geyser  
- Sunsteel Strike  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Dark Pulse  
- Oblivion Wing  
- Sucker Punch  
- U-turn