I have Ilumise and Volbeat, Plusle and Minun, Magnemite, Voltorb, and Electrike/Manectric. I'm leaning towards Magnemite due to the Steel typing and defense which should let me survive a hit or two (though I'll probably lean towards a Speed-boosting nature just to make sure I can outspeed the League if I can).
Also, I just caught a female Absol and a female Seedot, so those Pokemon (and Seedot's evolutionary line) are open for options now (though I think I'm set for Grass-Dark types, given Cacturne). Absol took more than 30 turns, a ton of pokeballs and Great Balls and Ultra Balls, a ton of Super Potions, and ultimately two Timer Balls to catch, but it was worth it now that I can breed Absol freely.
