water

Gyarados @ Flyinium Z
Ability: Intimidate
EVs: 88 HP / 252 Atk / 168 Spe
Jolly Nature
- Substitute
- Dragon Dance
- Waterfall
- Bounce

Swampert @ Leftovers
Ability: Torrent
EVs: 252 HP / 252 Def / 4 SpD
Relaxed Nature
- Stealth Rock
- Scald
- Earthquake
- Roar

Tentacruel @ Black Sludge
Ability: Liquid Ooze
Happiness: 0
EVs: 252 HP / 200 SpD / 56 Spe
Calm Nature
IVs: 0 Atk
- Rapid Spin
- Mirror Coat
- Scald
- Sludge Bomb

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Calm Mind
- Surf
- Moonblast
- Hidden Power [Fire]

Greninja @ Choice Scarf
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Extrasensory
- Ice Beam
- Dark Pulse
- Rock Slide

Keldeo @ Choice Specs
Ability: Justified
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Secret Sword
- Scald
- Hidden Power [Electric]
- Hydro Pump