Question

What is the most common weakness for pokemon?

Answer 1

ICE
1 No Effect(Shedinja)
179 Not Very Effective
292 Normal Effectiveness
191 Super Effective

Or DRAGON which has the lowest "not very effective" count.
1 No Effect
37 Not Very Effective
596 Normal Effectiveness
29 Super Effective

Comments

I added a little bit to your answer :)

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Thanks Pokemaster