Your right dryads with the lvl 3 upgrade do 22dmg and shaman do 19dmg, my mistake. I am going to load up a game and test 12 shaman vs 12 3-3 dryads and see who wins, because I am curious now, I think bloodlust will have enough impact after the first round of casting and dispelling that the attack speed difference will make up for the armor/dmg difference. This is not what I was argueing earlier though, since that involves a combo of units and good hero micro ;P.