Question

Because I was so confused when I found out it could learn both and I don't want to have both when I have other moves I want to teach it.

Comments

dark pulse, it can take down your weakness of psychic types. lol forgot but still dark pulse i think is stronger since psychic types have no effect on dark types both are good tho or you can use your poison type moves since they become more effective and there isnt a message when hitting a psychic type...

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so can shadow ball lol

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Either one works because they both target psychic and they both target ghost. Really whichever you prefer.

Answer 1

Neither. You need to teach it Sludge Bomb.
Sludge Bomb is STAB and has a chance to poison which is very helpful sometimes when you want to sap health from a foe.
Go with this set from Smogon:
Weezing @ Black Sludge
Trait: Levitate
EV's: 252 HP 252 DEF. 4 SPA.
Bold Nature

• Wil-O-Wisp
• Sludge Bomb
• Pain Split
• Clear Smog.
  Wil-O-Wisp to half attack and burn. Sludge Bomb STAB. Pain Split to gain health. Clear Smog to remove stat boosts. You could go with Substitute over Sludge Bomb, but if Weezing gets taunted that might aswell be the end.

Answer 2

Shadow Ball, I find the SDef drop helps when taking down Pokemon.

Comments

I just wanted to know for type coverage against psychic types and dark pulse does get flinch but i like ur answer so I am going for shadow ball.

Answer 3

I suggest you have this as your set:

Weezing @ Black Sludge (Leftovers works)
Evs: 252 Hp / 252 Special Defense / 4 Defense
Trait: Levitate
Calm Nature
~ Shadow Ball/Sludge Bomb
~ Clear Smog
~ Will-O-Wisp
~ Pain Split

I prefer sludge bomb over shadow ball but you want that anyways so

Comments

don't ev train it in hp and then use pain split

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why not

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pain split averages hp so the lower the better

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but it is a source of recovery... when HP is low, you use pain split. hp evs are for bulk

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nah, it's better when you put it as this:
252 Def, 252 SDef, 4 HP
it makes him bulky, while able to abuse Pain slit and do MORE damage that when it has 252 HP EV's, as it makes his health higher, and less will be recovered.

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252 HP / 252 Def / 4 SDef is actually better.
Just because you invest in HP doesn't mean you can't use Pain Split effectively.

Answer 4

I would use dark pulse because of the chance of flinching, and to cover the psychic type weakness.

Comments

But Shadow Ball also covers psychic, and has an SDef drop. Sludge Bomb is way better than both due to STAB and chance to poison the target.