In addition to my Alliance 1-20 Pack I would like to throw out one for hordes aswell. Not much to tell about it, ofcourse 1-20 are easy leveling by hand, but some people are just too lazy, including myself.
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I have not tried any of these, since I'm playing alliance most of the time. So you might want to post here, how you did, using them. I wish you the best of luck.
Enjoy!