Magearna @ Grassy Seed  
Ability: Soul-Heart  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Pain Split  
- Flash Cannon  
- Shadow Ball  

Rillaboom-Gmax @ Heavy-Duty Boots  
Ability: Grassy Surge  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
- Protect  
- Leech Seed  
- Knock Off  
- Grassy Glide  

Hawlucha @ Grassy Seed  
Ability: Unburden  
EVs: 252 Atk / 132 Def / 124 Spe  
Naughty Nature  
- Brave Bird  
- Close Combat  
- Grass Knot  
- Swords Dance  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 152 Def / 104 Spe  
Bold Nature  
IVs: 0 Atk  
- Roost  
- Taunt  
- Spikes  
- Body Press  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover  

Tyranitar @ Heavy-Duty Boots  
Ability: Sand Stream  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Rock Slide  
- Flamethrower  
- Stealth Rock  
- Rest