Emperor of Corpses

The is the final boss of the Reign of Dragons timeline.

History
In an alternate timeline of the Divine era, the dragons have not been contained by the gods. Instead, they have grown in numbers and eventually dislodged the gods of Eterra from their seat of power.

As the dragons populate Eterra, a strand also gains necrotic powers. One member of it is the, which is fought by the Traveler to death.

Tactics
The Emperor is a powerful necrotic version of the Primeval Dragon, with lots of devastating abilities and the ability to resurrect the dead.

The Dragon is normally fought like its primeval cousin, as it can swipe in melee and shake itself to scatter necrotic projectiles in a large area. During the fight, the Dragon will also regularly blow spirit fire in a very large cone. It can also unleash a terrifying roar to instantly apply maximum Slow stacks.

The Dragon also resurrects hordes of Slaughtered Thralls that constantly converge on the player and try to box them in. Some of them will be imbued in necrotic flames, who explode on contact, quickly adding up damage.

The Emperor of Corpses can also change up the arena really fast. It regularly winds up for a necrotic über nova (similar to the Primeval Dragon's fire nova) that is capable of downing characters instantly, which can be avoided by moving out of its circle. After the explosion, the area outside will become covered in harmful fog of death, limiting play to the close vicinity of the dragon. This fog will dissipate after a while.

As the fight progresses, 'spikes' of exploding blood puddles will populate the outside of the arena that discourage moving into them.