Venusaur-Mega @ Venusaurite  
Ability: Chlorophyll  
EVs: 252 HP / 60 Def / 196 SpD  
Sassy Nature  
IVs: 19 Spe  
- Leech Seed  
- Synthesis  
- Power Whip  
- Roar  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Spikes  
- Roost  
- Whirlwind  
- Toxic  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 136 Def / 24 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Judgment  
- Ice Beam  
- Recover  

Tyranitar @ Choice Band  
Ability: Sand Stream  
EVs: 228 Atk / 28 Def / 252 Spe  
Adamant Nature  
- Pursuit  
- Stone Edge  
- Crunch  
- Superpower  

Giratina @ Leftovers  
Ability: Pressure  
EVs: 248 HP / 208 Def / 52 SpD  
Relaxed Nature  
IVs: 0 Atk / 30 Spe  
- Defog  
- Toxic  
- Will-O-Wisp  
- Rest  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 88 HP / 56 Def / 112 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Grass Knot  
- Hidden Power [Fire]  
- Aromatherapy