PokéBase - Pokémon Q&A
5 votes
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2 Answers

10 votes
Best answer

Garunteed as long as it is in your party and the pokemon never had it

before it is like chicken pox.

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Why has this been voted down this is correct information
I don't know, but maybe because it can spread only after a battle
3 votes

Very high, whole party get it in a few battles

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