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Nullgrave, Lord of the Voidforge

Boss

Fought on floors 80 and 90, in Act 5: The Voidforge. Floor 90 is this act's climax fight.

Mythic, cursed, and divine relics sit above legendary, the fusion ceiling, and drop only from boss and guardian kills: mythic from floor 50, cursed from floor 80, and divine from floor 90, but only on Infernal. Here, mythic and cursed relics can both drop from its floor 80 and 90 kills; a divine relic can drop from its floor 90 kill.

Abilities

Frostball

Frostball

Targets all-enemies · 2000-turn cooldown

Magic damage to all foes; may stun.

  • damage, power 10 + 0.9×magic
  • status, applies Stunned (stun, 1t), 35% chance
Arcane Bolt

Arcane Bolt

Targets enemy · Every turn

A reliable single-target magic missile.

  • damage, power 6 + 1.1×magic
Soul Drain

Soul Drain

Targets enemy · 3000-turn cooldown

The abyss drinks the target's life force, leaving wounds that refuse to close.

  • damage, power 4 + 0.4×magic
  • debuff, applies Withering (antiheal, 4t)

Statuses It Inflicts

Inflicts: StunnedStunned WitheringWithering

How to Prepare

  • You fight Nullgrave, Lord of the Voidforge solo, and there is no rest heal before the encounter, so arrive with real HP in the bank and sustain already flowing: lifesteal earned in the fight itself, plus potions bought with gold beforehand.
  • An escort wave of the biome's regular enemies fights first. Only after they fall does Nullgrave, Lord of the Voidforge step out alone for the closing wave, so keep enough HP and cooldowns in reserve for the real fight.
  • It can stun you, skipping one of your turns outright, so don't fight this one on a razor-thin HP margin.
  • It carries a ramping enrage from its very first turn: the longer the fight runs, the more true damage it drains from you every turn, so do not stall.
  • Its Void Aegis caps every single hit you land to 12% of its own max HP, so no single burst can delete it early. Expect a longer fight than your raw damage numbers suggest.
  • If you wipe, you restart at floor 1, but your permanent upgrades and talents carry over, so a loss here is a setback, not a full reset. Optional Hardcore mode also destroys your equipped gear on a wipe.