Can you help me to improve this team?

[Linksmasher]

Hello, I have a tournament in two months in my country and I want all the help possible to both improve my team, such as changing one attack or another within the same pokemon, I hope to receive all possible suggestions and all advice they can give me, of course many thanks


Skarmory
Nature: Careful
Spikes / Stealth Rock / Whirlwind / Roost
Item: BrightPowder


Staraptor
Nature: Adamant
Close Combat / Giga Impact / Brave Bird / Quick Attack
Item: Muscle Band


Milotic
Nature: Modest
Scald / Ice Beam / Recover / Mirror Coat
Item: Leftovers


Gallade
Nature: Jolly
Drain Punch / Psycho Cut / Night Slash / Sword Dance
Item: Life Orb


Haxorus
Nature: Jolly
Dragon Claw / Earthquake / Counter / Dragon Dance
Item: Lum Berry


MAnectric
Nature: Modest
Flamethrower / Thunderbolt / Hidden Power (Ice) / Magnet Rise
Item: Expert Belt

I know that your help can be valuable, please, I need you advice

 

[Scrafty Fella]

EVs?

 

[Linksmasher]

I use the EV's for the benefit of their natures, and some other status, here is

Skarmory
255 on HP
255 on Special Defense

Staraptor
255 on Attack
255 on Speed

Milotic
255 on Special Attack
64 on Defense
80 on Special Defense
108 on Speed

Gallade
56 on Attack
196 on Defense
255 on Speed

Haxorus
104 on HP
80 on Attack
96 on Special Attack
228 on Speed

Manectric
255 on Special Attack
255 on Speed

and there's all the EV's