Oh, that's pretty cool actually, so much better than poison type lol. To check your 3rd pokemon you have to have completed the game ie the pokemon league and both of you have to be online at the same time on your game at least once(not when he's checking it just has to have occurred.
Oh really? mind if I ask what it is? mine is poison with ariados and something useless, can't remember what it was and don't know what the 3rd pokemon is :c