Blissey @ Choice Specs
Ability: Natural Cure  
Tera Type: Normal  
IVs: 4x31, 0 Atk
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Trick  
- Soft-Boiled  
- Protect  
- Stealth Rock  

Jellicent @ Choice Scarf
Tera Type: Water
IVs: 2x31 HP/Def 3x20+
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature  
- Trick
- Ice Beam
- Water Spout

Flygon 
Ability: Levitate
Tera Type: Ground
IVs: 2x31 Atk/Spe, 3x20+
EVs: 4 HP / 252 Atk / 252 Spe
- Earthquake
- Dragon Claw
- Substitute
- Dragon Dance