I'm not too uptight when it comes to rules. Hacked Pokemon are fine, as long as they haven't been given moves/stats not naturally possible in the game (I won't be using them, though). Same goes for 'ubers.'
If you frequent other battling forums, you're probably familiar with the sleep, item, evasion, and other clauses. Fair warning--I don't go by 'em. Double Teamers are too much fun x)
I'll do single or double battles, preferably Level 100 mode (my competitive Pokemon are horribly mismatched level-wise xD). I'm better at single battles.
My friend code is in my signature, if I'm not here on the forum, try buzzing me on Yahoo Instant Messenger.
Feel free to contact me for a battle (although I'm not that good xD).
Neat. I wasn't aware that some people have clauses on battles. I typically use every dirty trick in the book, including the much loathed Double Team. I agree with Tyto, this move is way too much fun not to use. People should just learn to anticipate it or stop whining about it.