Seek out Roanauk Icemist at Agmar's Hammer and initiate him as a member and leader of the Horde forces. Return to Overlord Agmar with the Blood Oath of the Horde when you complete this task.
1x Roanauk Icemist initiated
Like the tauren, Forsaken, trolls and blood elves, so too do the taunka need a leader born of their own blood. The one you saved from Icemist, Roanauk, will be this leader.
<Overlord Agmar hands you a parchment.>
I give to you something familiar - the blood oath of the Horde.
Take the oath to Roanauk Icemist and initiate him into the Horde as leader of the taunka.
Let us not keep him waiting.