Junundu

Description
Rideable sand wurm with its own unique skill set during the mission Gates of Desolation. Players don't actually ride on the back of these things, but in their mouths. As a result, your own character model isn't visible while controlling a wurm. Instead, you just see the things head bobbing around in the sand and it speeds along. We also discovered wurms in Nighfall can dance. It's not much, just a sleepy shifting of weight from side to side, but it's there.

Location

 * Gates of Desolation: "Smashed around a few lumbering mesas (giant stone enemies) with the new sand wurms in a mission called Gates of Desolation. These things can only be used in specific areas of the desert."

Skills Used
Their skills include a heal, a projectile attack, and something called a wurm thump whereby the creature lifts itself out of the sand and drops on foes for big damage.