I remember someone telling me that in HG/SS and maybe D/P/Pt that if you have nobody else to trade with, you could put a Machoke, Haunter, etc. into the GTS and ask for something ridiculous that nobody would go through with. While it's up for offer, complete a trade with someone else and once that's complete you can withdraw your pokemon and it will have evolved.
1. Does this work on B/W2? 2. If yes, does this work with Electabuzz + electrizer?
I don't have WiFi at home so the next best thing is the donut shop a few minutes away. Since it would be difficult to organize a trade without being able to communicate, I figure that this could work instead, and with that Magnemite coil thing going on it should be pretty easy to complete a trade.