Regigigas @ Sitrus Berry  
Ability: Unburden  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Close Combat  
- Multi-Attack  
- Wicked Blow  
- Belly Drum  

Eternatus @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Quiver Dance  
- Draco Meteor  
- Earth Power  
- Sludge Wave  

Xerneas @ Metronome  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Rapid Spin  
- Boomburst  
- Earthquake  
- Strength Sap  

Celesteela @ Occa Berry  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
- Glare  
- U-turn  
- Topsy-Turvy  
- Shore Up  

Chansey (F) @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Nuzzle  
- Shore Up  
- Anchor Shot  
- Defog  

Zekrom @ Dragon Memory  
Ability: Adaptability  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Strength Sap  
- Dragon Dance  
- Bolt Strike  
- Multi-Attack