Tentacruel @ Mental Herb  
Ability: Rain Dish  
EVs: 252 HP / 40 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Toxic Spikes  
- Rapid Spin  
- Scald  

Arceus-Fighting @ Fist Plate  
Ability: Multitype  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Ice Beam  
- Recover  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 252 HP / 220 Def / 36 Spe  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Roar  
- Rest  
- Sleep Talk  

Genesect @ Choice Scarf  
Ability: Download  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- U-turn  
- Iron Head  
- Ice Beam  
- Thunder Wave  

Dialga @ Custap Berry  
Ability: Pressure  
EVs: 192 HP / 252 SpA / 64 Spe  
Modest Nature  
IVs: 0 Atk  
- Aura Sphere  
- Draco Meteor  
- Thunder  
- Stealth Rock  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunder  
- Shadow Ball  
- Calm Mind  
- Aura Sphere