Latias-Mega @ Latiasite  
Ability: Levitate  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Ice Beam  
- Calm Mind  
- Recover  

Suicune @ Wiki Berry  
Ability: Inner Focus  
EVs: 252 HP / 48 Def / 44 SpA / 108 SpD / 56 Spe  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Ice Beam  
- Roar  
- Tailwind  

Tsareena @ Assault Vest  
Ability: Queenly Majesty  
EVs: 224 HP / 108 Atk / 4 Def / 92 SpD / 80 Spe  
Adamant Nature  
- Power Whip  
- Knock Off  
- U-turn  
- Feint  

Krookodile @ Mago Berry  
Ability: Intimidate  
EVs: 52 HP / 200 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stomping Tantrum  
- Knock Off  
- Stealth Rock  
- Protect  

Blacephalon @ Choice Scarf  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Heat Wave  
- Shadow Ball  
- Overheat  
- Taunt  

Thundurus @ Electrium Z  
Ability: Prankster  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Hidden Power [Ice]  
- Thunder Wave  
- Protect