Thirsty River (mission)/Zaishen Quest

Summary

 * Annihilate the six opposing enemy teams.
 * *BONUS* Cleanse the area before King Khimaar's spirit leaves
 * *BONUS* Complete the mission in Hard Mode.

Dialogue
Are you worthy of Ascension? That honor goes to only the brave and noble champions who can surmount the trials at Thirsty River.
 * Accept: I can do that!
 * Reject: No, I'm way too busy today.