Latios @ Lum Berry
EVs: 28 HP / 12 Def / 244 SpA / 6 SpD / 220 Spe
Ability: Levitate
Timid Nature
- Calm Mind
- Psychic 
- Ice Beam 
- Thunderbolt

Suicune @ Leftovers
EVs: 236 HP / 142 Def / 132 Spe
Ability: Pressure
Bold Nature
- Surf
- Rest
- Calm Mind
- Substitute

Snorlax @ Chesto Berry
Ability: Thick Fat
EVs: 140 HP / 96 Atk / 50 Def / 216 SpD / 8 Spe
Careful Nature
- Curse
- Return
- Earthquake
- Rest