Arceus-Steel @ Iron Plate  
Ability: Multitype  
EVs: 92 HP / 164 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Substitute  
- Recover  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
- Earthquake  
- Stealth Rock  
- Thunder Wave  
- Stone Edge  

Gastrodon-East @ Leftovers  
Ability: Storm Drain  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Earthquake  
- Waterfall  
- Recover  
- Curse  

Dialga @ Choice Specs  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Fire Blast  
- Power Gem  
- Dragon Pulse  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
Shiny: Yes  
EVs: 56 HP / 116 Def / 84 SpA / 252 Spe  
Timid Nature  
- Shadow Sneak  
- Defog  
- Draco Meteor  
- Shadow Ball  

Shaymin-Sky @ Choice Scarf  
Ability: Serene Grace  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Air Slash  
- Seed Flare  
- Healing Wish  
- Aromatherapy