Opinions on my current rain team? Struggling slightly

Question

It's just a rain team that I thought would be fun but I'm not totally sure if i'm missing anything or not.
I'm very new to playing Pokemon battles somewhat seriously. Any criticism is good criticism so hit me with it!!

BATTLE FORMAT IS SINGLES

Pelipper (M) @ Damp Rock
Ability: Drizzle
Shiny: Yes
Tera Type: Water
EVs: 248 HP / 232 Def / 28 SpA
Serious Nature
- Hurricane
- Protect
- U-turn
- Hydro Pump

Went for Pelipper because i wanted a rain setter preferably with Drizzle as i think rain dance is quite annoying and would rather have more useful moves.

Toxicroak (M) @ Life Orb
Ability: Dry Skin
Shiny: Yes
Tera Type: Fairy
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Poison Jab
- Ice Punch
- Swords Dance
- Drain Punch

Toxicroak is on here because i like him and Dry Skin has huge benefits because of rain plus he has good moves IMO. Love that lil frog

Annihilape (M) @ Sitrus Berry
Ability: Defiant
Shiny: Yes
Tera Type: Dark
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Close Combat
- Earthquake
- Rage Fist
- Throat Chop

He's cool, He's fast so he goes on the team. Love the typing and design thats why he's on here.

Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
Shiny: Yes
Tera Type: Electric
EVs: 120 HP / 136 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Overheat
- Will-O-Wisp
- Volt Switch
- Discharge

Felt like i needed a fire type of some sort and also electric hence why he's here and i love him. So far in the matches i've had he's been a great help and came in clutch multiple times.

Hydrapple (M) @ Assault Vest
Ability: Regenerator
Shiny: Yes
Tera Type: Grass
EVs: 252 HP / 16 SpA / 240 Spe
IVs: 0 Atk
- Fickle Beam
- Giga Drain
- Earth Power
- Dragon Tail

I was looking for a grass type and something a little bit bulkier so i thought, why not. I wanted to give him a chance as i prefer slightly older pokemon instead of all the newgen stuff. But he looks cool

Archaludon (M) @ Leftovers
Ability: Stamina
Shiny: Yes
Tera Type: Electric
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Electro Shot
- Dragon Pulse
- Flash Cannon
- Dark Pulse

Picked up Archaludon because of the rain synergy with electro shot and fairy coverage

PS: Happy now Fizz :DDD

Comments

Is this Pokémon champions?

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Well it's both Champions and Showdown. Mostly showdown ATM since I'm gathering my team yk

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This team is illegal in champions if it’s for champions.

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To explain R-The-Great's comment, in case you don't know, Pokemon Champions hasn't added the Assault Vest or the Heavy Duty Boots in either of its formats so far. If you select 'select a format' at the top of the teambuilder screen, there's a button saying 'validate' next to it, and it will tell you if, for example, you're using an item not available, or, (multiple times in my case) you're using an event Pokemon with custom IVs (they are set to specific IVs)

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To add to Ax109 and R The Great, Terastilization has not been added to Champions as only Mega Evolution is available and allowed right now