By the way, I see you're asking for advice for online battles. I'm up for a match when you're free, but I suggest you first know about EV training and IV breeding though. Oh, and natures as well. Those are essential for having a good competitive PKMN. But my knowledge on competitive play only revolves around the 'mons I like to use and the foes I've faced before, so I can't really help with movesets and items of choice and other stuff like that. :/
Anyway, see ya later! I'm about to leave the office. :3
(Oh, and I read that you're looking for a Darkrai. I can give you one if you want. :3)