Rate my Mono-Water Team please

Question

Protean Shake (Greninja) (M) @ Expert Belt
Ability: Protean
Shiny: Yes
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Gunk Shot
- Dark Pulse
- Hydro Pump
- Ice Beam

New Groove (Empoleon) (M) @ Leftovers
Ability: Defiant
Shiny: Yes
EVs: 184 HP/252 Atk/72 Spe
Adamant Nature
- Aqua Jet
- Liquidation
- Swords Dance
- Earthquake

Azuming Genders? (Azumarill) (M) @ Leftovers
Ability: Sap Sipper
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Whirlpool
- Perish Song
- Rest
- Protect

Moxiegyn (Gyarados) (M) @ Flyinium Z
Ability: Moxie
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Waterfall
- Bounce
- Substitute

GTFO My Swamp (Swampert-Mega) (M) @ Swampertite
Ability: Damp
Shiny: Yes
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Scald
- Earthquake
- Stealth Rock
- Roar

Wash your language (Rotom-Wash) @ Iapapa Berry
Ability: Levitate
Shiny: Yes
EVs: 248 HP / 240 Def / 20 Spe
Bold Nature
IVs: 0 Atk
- Defog
- Hydro Pump
- Volt Switch
- Will-O-Wisp

Comments

Just at a glance, I'd recommend replacing Expert Belt with Life Orb on Greninja; more power and less situational on a mon that doesn't really mind LO's chip damage, since it doesn't take much to KO it no matter how much HP it has.

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No drizzle pelliper?

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I think that "My Swamp" might need a different move replacing scald, or roar.

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maybe your empoleon should have something like metal claw instead of liquidation