Water

Dewgong (M) @ Leftovers
Ability: Thick Fat
EVs: 4 HP / 252 Def / 252 SpD
Modest Nature
IVs: 0 Atk
- Protect
- Toxic
- Disable
- Ice Beam

Walrein (M) @ Leftovers
Ability: Thick Fat
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Hidden Power [Fire]
- Aqua Ring
- Ice Beam
- Surf

Primarina (F) @ Focus Sash
Ability: Torrent
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Aqua Jet
- Moonblast
- Surf
- Psychic

Samurott (M) @ Choice Scarf
Ability: Shell Armor
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Waterfall
- Megahorn
- Sacred Sword
- Knock Off

Wailord (M) @ Choice Band
Ability: Pressure
EVs: 252 HP / 60 Atk / 196 Def
Adamant Nature
- Liquidation
- Double-Edge
- Earthquake
- Heavy Slam

Lanturn (M) @ Assault Vest
Ability: Volt Absorb
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Discharge
- Dazzling Gleam
- Thunderbolt
- Hidden Power [Fighting]