Venusaur-Mega @ Venusaurite  
Ability: Thick Fat  
Tera Type: Grass  
EVs: 248 HP / 64 Def / 64 SpA / 132 SpD  
Calm Nature  
IVs: 0 Atk  
- Leech Seed  
- Toxic  
- Synthesis  
- Grass Knot  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Water  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 216 Def / 44 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Brave Bird  

Groudon @ Red Orb  
Ability: Drought  
Tera Type: Flying  
EVs: 248 HP / 68 Def / 192 SpD  
Relaxed Nature  
- Spikes  
- Precipice Blades  
- Overheat  
- Rock Tomb  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
Tera Type: Ghost  
EVs: 248 HP / 164 Def / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Foul Play  
- Refresh  
- Stealth Rock  
- Recover  

Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Meteor Beam  
- Dynamax Cannon  
- Sludge Bomb  
- Flamethrower