Friend Wanted me to make a mega Glalie Team

Glalie @ Glalitite
Ability: Ice Body
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Double-Edge
- Explosion
- Earthquake
- Freeze-Dry

Swampert @ Leftovers
Ability: Torrent
EVs: 240 HP / 16 Atk / 252 Def
Relaxed Nature
- Stealth Rock
- Earthquake
- Scald
- Toxic

Hydreigon @ Life Orb
Ability: Levitate
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Draco Meteor
- Dark Pulse
- Iron Tail
- Roost

Sylveon @ Choice Specs
Ability: Pixilate
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
- Hyper Voice
- Psyshock
- Hidden Power [Fire]
- Baton Pass

Forretress @ Leftovers
Ability: Sturdy
EVs: 252 HP / 16 Def / 240 SpD
Relaxed Nature
- Rapid Spin
- Spikes
- Volt Switch
- Gyro Ball