Slaking (M) @ Choice Band  
Ability: Truant  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Return  
- Shadow Ball  
- Focus Punch  
- Double-Edge  

Deoxys-Attack @ Spell Tag  
Ability: Pressure  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Shadow Ball  
- Superpower  
- Extreme Speed  
- Rock Slide  

Latios @ Soul Dew  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 2 Atk / 30 SpA / 30 Spe  
- Ice Beam  
- Thunderbolt  
- Hidden Power [Fire]  
- Recover  

Groudon @ Salac Berry  
Ability: Drought  
EVs: 60 HP / 252 Atk / 8 Def / 188 Spe  
Adamant Nature  
- Earthquake  
- Hidden Power [Ghost]  
- Swords Dance  
- Substitute  

Snorlax @ Leftovers  
Ability: Immunity  
EVs: 80 HP / 252 Atk / 176 SpD  
Brave Nature  
- Body Slam  
- Shadow Ball  
- Fire Blast  
- Curse  

Latias @ Soul Dew  
Ability: Levitate  
EVs: 80 HP / 176 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dragon Claw  
- Thunder  
- Calm Mind  
- Recover