Oh that ...
You have to earn (or steal) rune from Rath (or something simmilar, not sure how that Black Human Druid is named). smile

You can earn it by saving the Grove, or actualy even raiding it and take this from his dead body.

I still dont understand why cant we change Race for our hirelings. frown
Lets us play Githyanki as racist as they trully are! frown