Venusaur-Mega @ Venusaurite  
Ability: Thick Fat  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Giga Drain  
- Synthesis  
- Hidden Power [Fire]  
- Sludge Bomb  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 232 Def / 24 Spe  
Bold Nature  
IVs: 0 Atk  
- Roost  
- Spikes  
- Stealth Rock  
- Whirlwind  

Manaphy @ Waterium Z  
Ability: Hydration  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Tail Glow  
- Surf  
- Psychic  
- Rain Dance  

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- V-create  
- Final Gambit  
- Bolt Strike  
- U-turn  

Tyranitar @ Assault Vest  
Ability: Sand Stream  
EVs: 224 HP / 32 Atk / 252 SpD  
Careful Nature  
- Rock Slide  
- Crunch  
- Pursuit  
- Earthquake  

Excadrill @ Steelium Z  
Ability: Sand Rush  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Iron Head  
- Earthquake  
- Rapid Spin