Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Curse  
- Encore  
- Roost  
- Spore  

Groudon-Primal @ Choice Band  
Ability: Mold Breaker  
EVs: 172 HP / 252 Atk / 84 Spe  
Adamant Nature  
- V-create  
- Thousand Arrows  
- U-turn  
- Ice Shard  

Meloetta @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 4 SpD / 252 Spe  
Timid Nature  
- Baton Pass  
- Dark Void  
- Shell Smash  
- Substitute  

Rayquaza-Mega @ Choice Specs  
Ability: Gale Wings  
Shiny: Yes  
EVs: 88 HP / 168 Def / 252 SpA  
Modest Nature  
IVs: 0 Atk  
- Oblivion Wing  
- Chatter  
- Switcheroo  
- Taunt  

Xerneas @ Pixie Plate  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Judgment  
- Steam Eruption  
- Shell Smash  
- Spore  

Zapdos @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 8 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Recover  
- Chatter  
- Defog  
- Baton Pass