So I am new to competitive Pokemon and this is my first team I have ever built. Any changes or anything please let me know.

Arcanine @ Leftovers
Ability: Intimidate
Happiness: 0
EVs: 252 HP / 252 Atk / 4 SpA
Adamant Nature
- Flamethrower
- Frustration
- Howl
- Extreme Speed

Empoleon @ Wave Incense
Ability: Torrent
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
- Surf
- Flash Cannon
- Yawn
- Swords Dance

Trevenant @ Lum Berry
Ability: Natural Cure
EVs: 248 HP / 8 Atk / 252 SpA
Mild Nature
- Giga Drain
- X-Scissor
- Calm Mind
- Shadow Ball

Ampharos @ Zap Plate
Ability: Static
EVs: 4 Atk / 252 SpA / 252 Spe
Mild Nature
- Agility
- Brick Break
- Thunder
- Outrage

Hydreigon @ Leftovers
Ability: Levitate
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Dragon Rush
- Work Up
- Hyper Voice
- Torment

Beedrill @ Leftovers
Ability: Sniper
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Aerial Ace
- Agility
- Iron Defense
- Toxic Spikes