Xerneas @ Pixie Plate  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Extreme Speed  
- Boomburst  
- Rapid Spin  
- Diamond Storm  

Eternatus @ Black Sludge  
Ability: Simple  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Core Enforcer  
- Sludge Wave  
- Earth Power  

Groudon @ Soft Sand  
Ability: Ice Scales  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Precipice Blades  
- Thousand Arrows  
- Glacial Lance  

Yveltal @ Life Orb  
Ability: Triage  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Oblivion Wing  
- Fiery Wrath  
- Leech Seed  

Calyrex-Ice @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Glacial Lance  
- Thousand Waves  
- Shore Up  

Dialga @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Anchor Shot  
- Core Enforcer  
- Recover  
- Topsy-Turvy