Nithogg

Nithogg is a storm drake world boss located atop Nastrondir in Stormheim while Scourge of the Skies is available. He used to be a servant to the keepers, but broke free. Vethir wanted him dead for terrorizing the lands of Stormheim.

He also appears during Dances With Ravenbears. Chief Cukkaw and his tribe of wildkin attempt to gain the titanic storm drake's favor with a jolly dance ritual. Nithogg, apparently unimpressed, incinerates the entire tribe with a single breath before flying off.

Adventure Guide
''The great dragon Nithogg was once of the Thorignir, having left the brood shortly after they swore fealty to the titan keepers. Nithogg believed that one day he would be more powerful than even the keepers, and refused to be their subject. Instead, he took up roost in the mountain Nastrondir, where he raises his brood and terrorizes the nearby lands whenever the mood strikes him.''

Overview
Over the course of the encounter, Nithogg uses his powerful breath attack and a muscular tail! Avoid standing in front or behind him.

Damage Dealers

 * Be sure not to be too close when Static Sparks die as they burst in an Unstable Explosion.
 * Do not stand in front of or behind Nithogg to avoid Storm Breath and Tail Lash.
 * When Nithogg reaches 80%, 60%, 40%, and 20% health, avoid standing in Crackling Jolt.

Healers

 * Do not stand in front of or behind Nithogg to avoid Storm Breath and Tail Lash.
 * When Nithogg reaches 80%, 60%, 40%, and 20% health, avoid standing in Crackling Jolt.

Tanks

 * Face Nithogg away from your allies to avoid hitting them with Storm Breath.
 * When Nithogg reaches 80%, 60%, 40%, and 20% health, avoid standing in Crackling Jolt.

Abilities

 * Static Spark
 * Static Spark
 * Static Spark
 * Static Spark
 * Static Spark
 * Static Spark

Related achievements

 * Unleashed Monstrosities

Objective of

 * Scourge of the Skies

Trivia

 * Nithogg is a reference to, a dragon from Norse mythology who gnaws on the roots of the world tree . Nithogg's abode of Nastrondir is a reference to , the place in where Níðhöggr lives.
 * Nithogg appears as HS Nithogg (a legendary card) for the shaman class in the Descent of Dragons expansion for Hearthstone. His flavor text reads: "Not to be confused with Nithogger."