Help with my team

[RegalWolf]

So my two competitive teams are;

Blaziken-Mega
Speed Boost
Brave Bird
Sky Uppercut
Poison Jab
Blaze Kick

Charizard-Mega
Blaze
Fly
Dragon Rage
Blast Burn
Flamethrower

Garchomp
Sand Veil
Dragon Rush
Earthquake
Brick Break
Giga Impact

Magnezone
Magnet Pull
Thunder Wave
Hidden Power
Thunderbolt
Substitute

Lapras
Water Absorb
Ice Beam
Thunder Bolt
Sheer Cold
Hydro Pump

Sawsbuck
Sap Sipper
Grass Knot
Solar Beam
Nature Power
Jump Kick

I was thinking of switching my Sawsbuck because he's real risky to my team-that and people have told me about him being a poor choice.

Aggron
Sturdy
Metal Sound
Iron Tail
Double-Edge
Metal Burst

Gardevoir-Mega
Trace
Thunderbolt
Psychic
Teleport
Magical Leaf

Manectric-Mega
Minus
Quick Attack
Thunderbolt
Odor Sleuth
Bite

Salamence
Intimidate
Dragon Claw
Crunch
Fire Fang
Thunder Fang

Gyarados
Intimidate
Bite
Ice Fang
Aqua Tail
Thrash

Staraptor
Intimidate
U-Turn
Brave Bird
Close Combat
Take Down

This team is brand new so I haven't the chance to change the moves or anything. I need some suggestions on the moves though and I'm new at this competitive battling.

Suggestions would be nice.
Thank you.