My Favorite Water Pokemon Team

My Favorite Water Pokemon Team, and What ability n Nature they must have :

Seaking @Leftovers

Nature : Modest

Ability : Lightning rod
Move Set : Surf, Icebeam, Signal beam, Agility

EV train : 252 HP and  252 Spatk.. 3 Def, 3 Speed

Dewgong @ Leftovers
Ability: Thick Fat
HP:                  90   
Attack:             70   
Defense:           80   
Sp. Atk:           70   
Sp. Def:           95   
Speed:             70   
EVs: 248 HP / 8 SpAtk / 252 SpDef
Calm Nature
- Toxic
- Protect
- Surf
- Perish Song

Poliwrath @ Leftovers
Ability: Water Absorb
HP:                 90   
Attack:            95   
Defense:          95   
Sp. Atk:          70   
Sp. Def:          90   
Speed:            70   
EVs: 252 HP / 252 Def / 4 SpDef
Relaxed Nature
- Rest
- Sleep Talk
- Scald
- Circle Throw

Tentacruel @ Black Sludge
Ability: Rain Dish / Clear Body
HP:                 80   
Attack:            70   
Defense:          65   
Sp. Atk:          80   
Sp. Def:          120   
Speed:            100
EVs: 240 HP / 244 Def / 24 Speed
Bold Nature
- Rapid Spin
- Scald
- Toxic Spikes
- Haze