Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Fairy 
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Meteor Beam  
- Dynamax Cannon  
- Fire Blast

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