[RATE MY TEAM] My first ever VGC team

[Eckley]

So as many of you know, and as the title states, I'm completely new to VGC and thi is my first ever team. It's taken me a while to build, and
any help would be appreciated, because I'm sure there's some gaping flaw in this team which I haven't noticed :D

Things in bold have been changed


Swampert-Mega @ Swampertite
Ability: Swift Swim
Level: 50
EVs: 84 HP / 252 Atk / 172 Spe100 HP / 252 Atk / 156 Spe
Adamant Nature
- Earthquake
- Waterfall
- Ice Punch
- Protect

So I wasn't really sure about what to do with these EVs. With 150 base Attack, M Swampert will hit hard even if it isn't fully invested, but I decided to give him max attack just so he hits the hardest he can. 172 speed outspeeds jolly 252 speed M Aerodactyl without tailwind, and because of this, will also outspeed timid M Sceptile in the rain. I just chucked the leftover EVs in HP
Waterfall and earthquake are for STAB, while Ice Punch i for dragon types.
Evs changed to still out speed Timid M Sceptile in the rain, but not Jolly aerodactyl


Politoed @ Damp Rock
Ability: Drizzle
Level: 50
EVs: 68 HP / 192 Def / 108 SpA / 140 SpD
Modest Nature
- Protect
- Hydro Pump
- Ice Beam
- Scald

After doing some research, it seems that Politoeds are usually choice scarfed, but I wanted a bulkier Politoed, so I didn't invest in speed and decided to put a damp rock on it to extend the rain.
I did make quite a lot of calcs to come to ts EV spread, but I cant remember what I calced for Don't hate me
I think it can survive a timid M Manecric Thunderbolt.


Goodra @ Leftovers
Ability: Hydration
Level: 50
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
- Rain Dance
- Dragon Pulse
- Sludge WaveSludge Bomb
- Protect

Goodra is on the team for an extra rain setter. It's got 150 base Sp.Def, so it's already bulky in that area, so I decided to make it Bold with 252HP/252Def to survive Jolly Life orb Garchomp's Dragon claw. Dragon Pulse doesn't OHKO it back though so I'm thinking of changing this to Draco Meteor, which will OHKO it. Sludge wave is for fairy coverage


Whimsicott @ Mental Herb Focus Sash
Ability: Prankster
Level: 50
EVs: 252 HP / 20 Def / 12 SpD / 220 Spe252 HP/ 36 SpA / 220 Spe
Timid Nature
- Taunt
- Protect
- Encore
- Giga Drain

This is mainly for thundurus, because 220 Timid nature is able to outspeed 252 timid Thudurus. The idea is to taunt it, and KO it before it can do any statusing. Encore is there for fake out users, and giga drain is there to have an attacking move. Mental herb is just in case I get unexpectedly taunted myself (I.e. if someone who hasn't been taunted taunts me), but I'm not really sure if this is necessary
Decided to put the 36 spare EVs into SpA to get 3HKO on most calm Rotom-W variants


Escavalier @ Choice Band
Ability: Swarm
Level: 50
EVs: 252 HP / 252 Atk / 4 Def
Brave Nature
IVs: 0 Spe
- Megahorn
- Iron Head
- X-Scissor
- Drill Run

My cresselia Killer. 252 Attack adamant choice band has an 81.3% chance to OHKO 252HP/252Def Bold nature, and it could stop them from setting up TR since Escavalier is slower. Drill run is for other steel types, Iron head is another stab move and X-scissor is for accuracy if i don't want to miss Megahorn


Rotom-Heat @ Sitrus Berry
Ability: Levitate
Level: 50
EVs: 244 HP / 36 Def / 140 SpA / 4 SpD / 84 Spe252 HP / 116 Def / 100 SpA / 40 SpD
Modest Nature
- Thunderbolt
- Overheat
- Protect
- Will-O-Wisp

Rotom is here to have a bit of coverage, and get a couple of burns off on some physical attackers, while still being able to do some damage. Thunderbolt is the main attacking move, but if the rain isn't up, I've got an overheat to use as well

This a set is one I found on the internet, because I didn't how I should EV it

Thoughts and help greatly appreciated :D