Xerneas @ Shed Shell  
Ability: Wonder Guard  
EVs: 72 HP / 252 Def / 184 Spe  
Timid Nature  
IVs: 0 Atk  
- Scald  
- Baton Pass  
- Roost  
- Substitute  

Venusaur-Mega @ Black Sludge  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Milk Drink  
- Taunt  
- Parting Shot  

Giratina @ Leftovers  
Ability: Magic Bounce  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Spikes  
- Parting Shot  
- Will-O-Wisp  
- Heal Order  

Kyogre-Primal @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 252 SpD / 8 Spe  
Calm Nature  
IVs: 0 Atk  
- Chatter  
- Magic Coat  
- Defog  
- Soft-Boiled  

Metagross-Mega @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Fusion Bolt  
- Gear Grind  
- Sacred Fire  
- Trick  

Latios-Mega (M) @ Soul Dew  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Shell Smash  
- Oblivion Wing  
- Psystrike