Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Thousand Arrows  
- Coil  
- Rest  
- Glare  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 244 HP / 196 Def / 52 SpD / 16 Spe  
Impish Nature  
- Sacred Fire  
- Brave Bird  
- Toxic  
- Whirlwind  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Pulse  
- Oblivion Wing  
- Heat Wave  
- Taunt  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 80 Def / 176 SpD  
Impish Nature  
- Sunsteel Strike  
- Stealth Rock  
- Morning Sun  
- Toxic  

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

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Substitute  
- Play Rough  
- Wild Charge  
- Close Combat