r8 my team, tell me what to fix, it's my first team and I have no idea what I'm doing

Alakazam-Mega (M) @ Alakazite
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Psychic
- Focus Blast
- Shadow Ball
- Encore

Metagross-Mega @ Metagrossite
Ability: Clear Body
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Meteor Mash
- Zen Headbutt
- Hammer Arm
- Ice Punch

Manectric-Mega @ Manectite
Ability: Lightning Rod
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- Volt Switch
- Flamethrower
- Hidden Power [Ice]

Skarmory @ Leftovers
Ability: Sturdy
EVs: 252 HP / 232 Def / 24 Spe
Impish Nature
- Roost
- Defog
- Brave Bird
- Whirlwind

Azumarill @ Choice Band
Ability: Huge Power
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Play Rough
- Waterfall
- Aqua Jet
- Knock Off

Tyranitar @ Choice Scarf
Ability: Sand Stream
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Stone Edge
- Pursuit
- Superpower
- Crunch