Kidneys are essential to the urinary system and also serve homeostatic functions such as the regulation of electrolytes (including salts), maintenance of acidâbase balance, maintenance of fluid balance, and regulation of blood pressure (via the salt and water balance).
Xazi Smolderpipe is a goblin vendor found in the Underbelly beneath Dalaran. [59.0, 59.0] She can do repairs.
Deathbrand is a quest to find the treasure of Haknir Death-Brand that is scattered across Solstheim. This quest can be started after finding and reading a copy of Deathbrand at level 36 or higher. Reading it before level 36 will not activate the quest. A copy can be found in Tel Mithryn or Raven Rock Temple.