PokéBase - Pokémon Q&A
2 votes
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Becuase my Jolteon has HP ice but it doesn't do much damage even when super effective.

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1 Answer

3 votes

No, you can't change the power on an already caught Pokemon. The power is based on the IVs which are set as soon as you encounter/receive it.

So the only way is to breed a load of Eevees and test HP on each one :(

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And keep in mind that the max power for Hidden Power is only 60 I believe.