Mew @ Leftovers  
Ability: Synchronize  
EVs: 240 HP / 156 Def / 112 Spe  
Jolly Nature  
IVs: 0 Atk  
- Taunt  
- Seismic Toss  
- Will-O-Wisp  
- Roost  

Gardevoir-Mega @ Gardevoirite  
Ability: Trace  
EVs: 248 HP / 240 Def / 20 Spe  
Modest Nature  
IVs: 0 Atk  
- Wish  
- Protect  
- Hyper Voice  
- Will-O-Wisp  

Latios (M) @ Choice Specs  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Shadow Ball  
- Energy Ball  
- Ice Beam  

Jirachi @ Leftovers  
Ability: Serene Grace  
EVs: 240 HP / 16 Def / 252 SpD  
Careful Nature  
IVs: 30 Spe  
- U-turn  
- Stealth Rock  
- Healing Wish  
- Toxic  

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 240 HP / 16 Atk / 252 Spe  
Jolly Nature  
- V-create  
- U-turn  
- Bolt Strike  
- Final Gambit  

Slowbro @ Colbur Berry  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Slack Off  
- Grass Knot  
- Flamethrower