
You see Rupture.
Notes
One of the bosses in the Heart of Destruction Quest.
Abilities
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire 
Energy 
Earth 
Drown 
Location
Behaviour
A rupture never retreats.
Strategy
Every few minutes during the fight, Rupture will summon a Damage Resonance. When he does, immediately stop attacking him and focus on killing the Resonance, since every time he is hit while the Damage Resonance is spawned will cause him to gain several thousand hitpoints back. For this same reason, do not use damage over time effects on him (such as Inflict Wound), since these hits will also cause him to heal.
Loot
Drop rates are estimated based on 35 samples (Loot Statistics). Colour-coding is applied after 50 samples — current sample size is below this threshold.
Task column indicates items used in delivery tasks.