when i started out multiboxing i was 2boxing a shaman to drop windfury and strength of earth totems and heal my warrior, back when windfury was awesome ;p

i moved on to 3boxing three ele shamans, which was an absolute blast to lvl, but was kinda limited to pvp at 70 and i wasnt really into pvp at the time.

and now i'm playing 5 druids so i can do whatever i want whenever i want without looking for a group.. ill probably dual spec my feral/resto to boomkin as well and have some fun in bgs as i enjoy pvp a lot more now than i used to.