Pros and cons about my team?

Question

I have made this team to get a 100-win streak in the battle tower in pokemon pearl, haven't succeeded yet but I'm trying. PLease name pros, cons and name ways I could make my team better!
Team:
Name: Kingdra
Evs: 252 Sp. Attack, 252 Speed, 4 Hp.
Nature: Modest
Ability: Swift Swim
Item: Haban Berry
Moves:
Draco Meteor
Ice Beam
Surf
Rain Dance

Name: Metagross
Evs: 252 Hp, 252 Attack, 4 Speed.
Nature: Adamant
Ability: Clear Body
Item: Lum Berry
Moves:
Meteor Mash
Bullet Punch
Zen Headbutt
Explosion

Name: Garchomp
Evs: 96 Speed, 252 Attack, Rest in Hp (Can't remember how much it was)
Nature: Adamant
Ability: Sand Veil
Item: Choice Scarf
Moves:
Earthquake
Outrage
Fire Fang
Aerial Ace (Just in case someone spams Minimize/Double Team)

Answer 1

Replace outrage with dragon claw, because they both get stab and u won't have to worry about dying to yourself by confuse damage
Just a recommendation, you don't have to do it