Anorith @ Sitrus Berry  
Ability: Battle Armor  
Level: 5  
EVs: 160 Atk / 200 Def / 40 SpD / 76 Spe  
Impish Nature  
- Swords Dance  
- Hidden Power [Bug]  
- Rock Blast  
- Brick Break  

Diglett @ Sitrus Berry  
Ability: Arena Trap  
Level: 5  
EVs: 116 HP / 156 SpD / 236 Spe  
Jolly Nature  
- Earthquake  
- Rock Slide  
- Screech  
- Substitute  

Seel @ Sitrus Berry  
Ability: Thick Fat  
Level: 5  
EVs: 156 HP / 156 Def / 116 SpD / 76 Spe  
Calm Nature  
IVs: 0 Atk  
- Substitute  
- Surf  
- Thief  
- Encore  

Gastly @ Sitrus Berry  
Ability: Levitate  
Level: 5  
EVs: 116 HP / 116 Def / 76 SpD / 196 Spe  
Timid Nature  
- Will-O-Wisp  
- Thunderbolt  
- Giga Drain  
- Explosion  

voltorb or this slot needs rework, poor against trapping mechanic (Voltorb) @ Sitrus Berry  
Ability: Static  
Level: 5  
EVs: 116 HP / 36 Atk / 80 SpA / 80 SpD / 196 Spe  
Hasty Nature  
- Thief  
- Thunderbolt  
- Hidden Power [Ground]  
- Explosion  

Bagon @ Sitrus Berry  
Ability: Rock Head  
Level: 5  
EVs: 156 HP / 76 Atk / 40 Def / 40 SpD / 196 Spe  
Adamant Nature  
- Dragon Dance  
- Double-Edge  
- Hidden Power [Ghost]  
- Substitute