Water Mono

Gyarados @ Gyaradosite
Ability: Intimidate
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Dragon Dance
- Waterfall
- Earthquake
- Ice Fang

Keldeo @ Choice Specs
Ability: Justified
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Scald
- Secret Sword
- Hydro Pump
- Icy Wind

Azumarill @ Sitrus Berry
Ability: Huge Power
EVs: 92 HP / 252 Atk / 164 Spe
Adamant Nature
- Belly Drum
- Aqua Jet
- Play Rough
- Knock Off

Tentacruel @ Black Sludge
Ability: Liquid Ooze
EVs: 248 HP / 216 Def / 28 SpD / 16 Spe
Timid Nature
- Scald
- Rapid Spin
- Acid Spray
- Toxic Spikes

Slowbro @ Leftovers
Ability: Regenerator
EVs: 252 HP / 232 Def / 24 SpD
Bold Nature
- Scald
- Slack Off
- Thunder Wave
- Psyshock

Swampert @ Rocky Helmet
Ability: Damp
EVs: 248 HP / 8 Atk / 252 Def
Relaxed Nature
- Stealth Rock
- Scald
- Earthquake
- Protect