Latias-Mega @ Latiasite  
Ability: Levitate  
EVs: 252 HP / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Magic Room  
- Roost  
- Defog  
- Healing Wish  

Insurance (Kartana) @ Choice Scarf  
Ability: Beast Boost  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
IVs: 19 Atk  
- Swords Dance  
- Leaf Blade  
- Sacred Sword  
- Smart Strike  

Mew @ Leftovers  
Ability: Synchronize  
EVs: 236 HP / 20 Def / 252 SpD  
Calm Nature  
- Magic Room  
- Roost  
- Will-O-Wisp  
- U-turn  

Serperior @ Choice Scarf  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Substitute  
- Glare  
- Hidden Power [Fire]  

Assurance (Azumarill) @ Choice Band  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Belly Drum  
- Aqua Tail  
- Liquidation  
- Play Rough  

Ms.Suurance (Cresselia) @ Leftovers  
Ability: Levitate  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Lunar Dance  
- Trick Room  
- Moonlight  
- Toxic