A Worthy Challenge: Yan-zhu the Uncasked (Horde)

Objectives
Complete the Stormstout Brewery Challenge Mode.

Description
, I need you to assemble a hearty group and lead them into Stormstout Brewery. Activate the Challenger's Orb therein, and evaporate Yan-zhu the Uncasked.

Return to me when you've completed this challenge, and I shall reward you handsomely.

Completion
You have my sincerest thanks,. Without fine Stormstout brews to lighten the drudgery of the day, the world would be a dull place indeed.