[RATE MY TEAM] I Need Help With My Team

[OdysseusHestia]

I know a big part of Pokemon is skill but I notice I keep losing. Can anyone help me adjust my team? This is for a doubles team.

Galvatula  @Deep Sea Tooth
Ability: Compound Eyes
Nature: Timid
EV:252 Sp. Attack 252 Speed 6 HP

• Thunder
  
• Sticky Web
  
• Thunder Wave
  
• Bug Buzz
  

Galvatula job is a fast pokemon which i use to set up sticky web and sweep any pokemon I can.

Goodra @Rocky Helmet
Ability: Gooey
Nature: Modest
EV:252 Hp 252 Sp. Attack 6 SP. DEF

• Thunder
  
• Raindance
  
• Muddy Water
  
• Dragon Pulse
  

Goodra is a tank that I was going to put into a rain team but until I make it i was putting him in this team. It has pretty good type coverage. Everyone knows to use physical damage on Goodra because its a Sp. Def monster so i put Rocky Helmet and have the ability Gooey.

Mawile @Mawilite
Ability: Intimidate
Nature: Adamant
Ev:252 Attack 252 Defense 6 Speed

• Protect
  
• Play Rough
  
• Iron Head
  
• Sucker Punch
  

Mawile is basically my attacking pokemon. Gets rid of lots of dragons and does good agaisnt Salamances and Garchomps. The extra Speed was added so that it can fight other Mawile's

Machamp @Expert Belt
Nature : Adamant
Ability: No Guard
Ev: 252 Attack, 252 Sp. Def, 6 HP

• Dynamic Punch
  
• Bullet Punch
  
• Thunder Punch
  
• Ice Punch
  

Machamp has type coverage and is bascially a sweeper.

Delphox No Item
Ability: Magician
Nature:Timid
Ev: 252 SP. Attack, 252 Speed, 6 HP

• Psychic
  
• Grass Knot
  
• Role Play
  
• Heat Wave
  

I added Delphox because i needed a Fire Type and Psychic someone traded me a battle ready one.

Vaporeon @Sea Incense
Ability: Water Absorb
Nature: Modest
EV: 252HP, 252 Sp. Attack

• Scald
  
• Ice Beam
  
• Aqua Ring
  
• Helping Hand
  

Vaporean is really tanky and can up attacks with Helping Hand. Also has pretty high Sp. Attack and can also be a sweeper.

[Rogue]

This looks more like a singles team than doubles. The two play very differently. I also would need to know your items to help you a little bit more: But here's my general idea of what you should change and do.

Galvantula @ Focus Sash
Ability: Compound Eyes
Level: 50
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunder
- Bug Buzz
- Hidden Power [Ice]
- Protect

Galvantula is rather frail and get OHKO'd by most things in the meta, so I think it's best to toss a sash on it. I get what your idea is on hazards with sticky web: But Pokemon in VGC usually don't switch that much, so you'd be wasting a turn for a hazard that might not even come into play. The speed control with t-wave would be nice, but it's easy for Galvantula to not even live even 2 turns.

Goodra @ Expert Belt
Ability: Gooey
Level: 50
EVs: 92 HP / 164 Def / 188 SpA / 4 SpD / 60 Spe
Modest Nature
- Ice Beam
- Fire Blast
- Dragon Pulse
- Sludge Bomb

I've never uses Goodra myself, but I know many who have. This is your common e-belt build, which gives you an offensive/relatively bulky goodra with decent bulk.
Rain dance requires set up and it's sort of a waste if you go up against other weather teams, especially when the only water type you have barely benefits from rain. Politoed would be a better choice if you wanted a rain team.

Machamp @ Assault Vest
Ability: No Guard
EVs: 252 HP / 156 Atk / 100 Def
Adamant Nature
- Dynamic Punch
- Ice Punch
- Stone Edge
- Knock Off

Mixed feelings about machamp. Conkeldurr is usually just better in every way. However. It's nice that he can never miss dynamic punch or stone edge. But he also is hit by all moves 100% of the time; meaning he's easy to get burned. Might wanna consider lum berry? I used assault vest out of not using him much.

Mawile @ Mawilite
Ability: Intimidate
EVs: 252 HP / 100 Atk / 44 Def / 112 SpD
Adamant Nature
- Iron Head
- Play Rough
- Sucker Punch
- Protect

Standard bulky offensive Mawile. herp.

Delphox @ Life Orb
Ability: Magician
EVs: 12 HP / 252 SpA / 244 Spe
Timid Nature
- Overheat
- Psychic
- Protect
- Role Play

I really would consider trying out overheat. It does big damage + can even OHKO things like shield Aegislash. which is huge. I like the role play choice however. Could be interesting. Might wanna drop magician for blaze however, considering offensive delphox does more for your team.

Vaporeon @ Sitrus Berry
Ability: Water Absorb
EVs: 140 HP / 116 Def / 250 SpA / 4 SpD
Modest Nature
- Muddy Water
- Hidden Power [Grass]
- Ice Beam
- Protect

rip vaporeon, you're somewhat missed. This was a big set back in the day, and it was probably one of the best so I'll slap it here. I get what you're wanting to do; Helping hand for support + aqua ring for survivability: But those require set ups which you don't have time for in doubles. Not to mention not having something like protect in VGC can REALLY cost you a game. Bulky offensive vaporeon.