It does take a bit of getting used to, and I have heard of some people who spar with their Pokemon.. but he isn't exactly the type to do that. So I'm pretty certain just keeping an electric or grass type Pokemon will be just fine, and I have both. Eridan only uses water type Pokemon, though he does have a bird and a ghost as well.. he just prefers the ones based on living in water.

[So if you're truly worried, get an electric or grass type, gurl :>]