Venusaur-Mega @ Venusaurite  
Ability: Thick Fat  
EVs: 252 HP / 172 Def / 68 SpD / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Hidden Power [Fire]  
- Giga Drain  
- Synthesis  

Wonderland (Slowbro) @ Rocky Helmet  
Ability: Regenerator  
EVs: 248 HP / 216 Def / 44 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Psyshock  
- Thunder Wave  
- Slack Off  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 248 HP / 108 Def / 152 SpD  
Sassy Nature  
- Heavy Slam  
- Flamethrower  
- Protect  
- Leech Seed  

Magearna @ Fairium Z  
Ability: Soul-Heart  
EVs: 248 HP / 136 Def / 96 SpA / 16 SpD / 12 Spe  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Thunderbolt  
- Pain Split  
- Calm Mind  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
EVs: 232 Atk / 68 Def / 208 Spe  
Jolly Nature  
- Earthquake  
- U-turn  
- Hidden Power [Ice]  
- Defog  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Soft-Boiled  
- Stealth Rock  
- Wish