Yggdras

Yggdras is a jormungar and the first boss of the Amphitheater of Anguish. Yggdras Worms spawn when he is killed.

Attacks & abilities

 * Cleave: Inflicts 110% of normal melee damage to an enemy and its nearest allies, affecting up to 3 targets.
 * Corrode Flesh: Causes 2082 to 2418 Nature damage, then inflicts 825 additional Nature damage every 3 sec. for 15 sec.

Trivia
is the world tree in Norse mythology and around it exist nine worlds. It is generally considered to mean Ygg's (Odin's) horse.