Help My Friend Out For The VGC

Alright I kind of made another team that I wanted my friend to maybe use at the tourney.

Rayquaza (RayQueezy) @ Yache Berry
Ability:Air Lock
EVs:252SpAtk/252Spd/4Hp
Nature:Timid
- Surf
- Thunderbolt
- Fire Blast
- Draco Meteor/Dragon Pulse
Stops all those that have weather creations Abomasnow(Fire Blast), Groudon Hippowdown(Surf), Kyogre(Thunderbolt). And Draco Meteor for stab. Yache Berry assure I live at least once and can take out whoever tries to take me out.

Mewtwo (MewSquared) @ Leftovers
Ability:Pressure
EVs:252Spatk/252Spd/4Hp
Nature:Modest
- Taunt
- Protect
- Aura Sphere
- Ice Beam/Psychic/Grass Knot
Taunt those that want to trick room, status, or any other crap. Aura sphere is mostly for Dialga and Smeargle. But don't what to put in the last attacking spot.

Gengar (PeekAhBoo) @ Focus Sash
Ability:Levitate
EVs:252Spatk/252Spd/4Hp
Nature:Modest
- Shadow Ball
- Sludge Bomb
- Thunderbolt
- Destiny Bond
Kills/Gets Rid of whats left that the two can't take care of

Metagross (Ewww Gross @ Shuca Berry
Ability:Clear Body
EVs:252Atk/252Hp/6Def
Nature:Adamant
- Bullet Punch
- Earthquake
- Meteor Mash/Explosion
- Protect
Gives cover to Gengar nothin much to it really

Garchomp (Land Shark) @ Life Orb
Ability:Sand Veil
EVs:252Atk/252Spd/4Hp
Nature:Adamant
- Earthquake
- Dragon Claw
- RockSlide
- Protect
Demolish everything in its path i suppose. Idk wanted to use garchomp really

Latios (DewTheDew) @ Haban Berry/SoulDew
Ability:Levitate
EVs:6Hp/252Spatk/252Hp
Nature:Timid
- Psychic
- Dragon Meteor/Dragon Pulse
- Flamethrower
- Protect
Why idk really seems like he would work well with garchomp and flamethrower to take down the only pokes that scare us steel and ice

Well yh thats it really idk what else to say about the team idk if the last four spots are all that great, but yh u guys be the judge.