I'm really new to competitive battling and just need some guidance with my NU team

Question

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Weezing
Bold (+defence-attack)
EV: 252 defence and 252 sp attack
Item: Black sludge
Moves: Flamethrower
Will-o-wisp
Sludge Bomb
Pain Split

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Pelipper
Bold (+defence-attack)
EV: 252 defence and 252 sp attack
Item: Damp Rock
Moves: Hurricane
Rain Dance
Roost
Surf

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Exeggutor
Modest (+sp attack-attack)
EV: 252 sp attack and 252 HP
Item: Heat Rock
Moves: Sunny Day
Solarbeam
Leech Seed
Psychic

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Dodrio
Adamant (+attack-sp attack)
EV: 252 attack and 252 speed
Item: Sharp Beak
Moves: Toxic
Pursuit
Roost
Brave Bird

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Tangela
Bold (+defence-attack)
EV: 252 defence and 252 HP
Item: Eviolite
Moves: Giga Drain
Synthesis
Solar Beam
Sunny Day

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Grumpig
Calm (+sp defence-attack)
EV: 252 sp defence and 252 sp attack
Item: Light Clay
Moves: Psychic
Heal Bell
Reflect
Thunder Wave

Writing it out makes me think it's extremely bad so I'm happy to accept any changes except getting rid of Pelipper, if I have to base my team around it I will, I just need to have Pelipper.
I originally thought of starting with my tank, Weezing but now might put up Exeggutor with the Sunny Day, Thanks

Comments

I have a lot, but I can't rate if you're forcing me to keep Pelliper.

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not on any specific pokemon?

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Well, I can't really rate without replacing Pokemon because Pelipper brings a lot of synergy problems.

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Rate my team Questions shouldnt even be perfect, and cant be perfect
And if it IS perfect, there is no need to ask for suggestions
So downvoting any non perfect team is prob the dumbest thing to do here

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You can also replace some pokemon if it does a better role