Team con MegaGyarados

Sono sicuro che manca qualcosa, o che comunque c'č qualacosa da aggiustare... Suggerimenti?

Gyarados (M) @ Gyaradosite
Ability: Intimidate
EVs: 80 HP / 252 Atk / 176 Spe
Jolly Nature
- Dragon Dance
- Waterfall
- Bite
- Earthquake

Nidoqueen (F) @ Black Sludge
Ability: Sheer Force
EVs: 128 HP / 252 SpA / 128 Spe
Modest Nature
- Ice Beam
- Earth Power
- Sludge Wave
- Stealth Rock

Talonflame (M) @ Sharp Beak
Ability: Gale Wings
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- Roost
- Steel Wing

Umbreon (M) @ Leftovers
Ability: Synchronize
Shiny: Yes
EVs: 4 HP / 252 Def / 252 SpD
Calm Nature
- Protect
- Wish
- Foul Play
- Heal Bell

Amoonguss (F) @ Black Sludge
Ability: Effect Spore
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
- Spore
- Giga Drain
- Foul Play
- Clear Smog

Klefki @ Light Clay
Ability: Prankster
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Reflect
- Light Screen
- Spikes
- Play Rough