Latias @ Lum Berry  
Ability: Levitate  
Shiny: Yes  
EVs: 252 HP / 80 SpD / 176 Spe  
Bold Nature  
- Thunder Wave  
- Charm  
- Rain Dance  
- Recover  

Steelix @ Chesto Berry  
Ability: Rock Head  
EVs: 252 HP / 252 SpD / 4 Spe  
Calm Nature  
IVs: 21 Atk / 10 SpA  
- Protect
- Torment
- Rest
- Toxic

Suicune @ Leftovers  
Ability: Pressure  
Shiny: Yes  
EVs: 240 HP / 252 Def / 8 SpD / 8 Spe  
Bold Nature  
IVs: 9 Atk / 27 SpA / 30 Spe  
- Protect  
- Substitute  
- Calm Mind  
- Surf