How hard is it to find the plans for the Mana Potion Injector? I looked it up and saw it has a low drop rate, but has anyone noticed anywhere where it may have a better chance of being dropped? Or is it not worth the effort of trying to get myself and just buy it out of the AH?
Kael'thas from Terrace has a better chance of dropping it than a random mob, too, along with some other patterns. Might want to look into that, as well. :D