So I just caught a Joltik on Pokemon Black and it has a Rash nature (+spatk/-spdef). It's characteristic is "very finicky", so its special attack stat is its best IV (I'm just starting to try to understand IV's and EV's because I want to start doing competitive battles). I just wanted to know what a good nature for Galvantula is. I'm torn between Rash and Modest. (nature doesn't have to be either of the two I mentioned)