Grimmsnarl (M) @ Focus Sash  
Ability: Prankster  
Level: 50  
EVs: 252 HP / 140 Def / 116 SpD  
Careful Nature  
- Light Screen  
- Reflect  
- Spirit Break  
- Taunt  

Porygon2 @ Eviolite  
Ability: Trace  
Level: 50  
EVs: 244 HP / 148 Def / 116 SpD  
Careful Nature  
IVs: 0 Atk  
- Trick Room  
- Foul Play  
- Eerie Impulse  
- Recover  

Gyarados @ Assault Vest  
Ability: Intimidate  
Level: 50  
EVs: 164 HP / 252 Atk / 92 Spe  
Adamant Nature  
- Waterfall  
- Bounce  
- Power Whip  
- Stone Edge  

Groudon @ Chesto Berry  
Ability: Drought  
Level: 50  
EVs: 252 HP / 44 Atk / 4 Def / 196 SpD / 12 Spe  
Impish Nature  
- Precipice Blades  
- Heat Crash  
- Rest  
- Bulk Up  

Dialga @ Life Orb  
Ability: Telepathy  
Level: 50  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Roar of Time  
- Flash Cannon  
- Earth Power  
- Thunder  

Cresselia (F) @ Leftovers  
Ability: Levitate  
Level: 50  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Moonlight  
- Trick Room  
- Calm Mind  
- Stored Power