Warden Bullrok at Garadar wants you to obtain 10 Obsidian Warbeads from the various ogres that inhabit Nagrand.
Though we seek a peaceful life, our enemies are many. Of these, none match the ogres in sheer brute power.
If you seek to prove your prowess to us, bring me the warbeads they wear around their necks. I will tell others of your accomplishments.