Xerneas @ Choice Specs  
Ability: Fairy Aura  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Hidden Power [Fire]  
- Thunder  
- Grass Knot  

Thundurus-Therian (M) @ Electrium Z  
Ability: Volt Absorb  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Thunderbolt  
- Grass Knot  
- Focus Blast  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Stealth Rock  
- Toxic  
- Sunsteel Strike  
- Morning Sun  

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Spectral Thief  
- Close Combat  
- Shadow Sneak  
- Hidden Power [Ice]  

Latias (F) @ Latiasite  
Ability: Levitate  
EVs: 252 HP / 80 Def / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Ice Beam  
- Defog  
- Roost  

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