Primordius

Your character vs. PrimordiusCalculate DPS

Official Overview (Blizzard)

Primordius claws at his current target, inflicting 0 Physical damage to all players in a 7-yard cone.

Abilities

Malformed Blood

The heavily-mutated blood within Primordius spreads to his current target, inflicting 0 Nature damage every 3 sec and causing the afflicted player's attacks to Congeal Blood, inflicting additional Nature damage to Living Fluids and Viscous Horrors. This effect lasts 1 min and stacks.

Mutated Abomination

Primordius is heavily mutated and resists attacks from non-mutated creatures. Damage taken from non-Fully Mutated players is reduced by 35%.

Evolution

When Primordius is mutated by enough Living Fluids, Mutagenic Pools, and his natural mutation rate, he evolves. Evolution increases all damage dealt by Primordius by 5% and grants him a new mutation. This effect stacks. Primordius can only have 3 mutations at any time.

Mutation: Ventral Sacs

Sacs located around Primordius's frill periodically erupt, inflicting 0 Nature damage to all players every 1 sec.

Mutation: Gas Bladder

A volatile mutation that allows Primordius to spray Caustic Gas, inflicting 800,000 Nature damage split evenly between all players within a 25-yard radius.

Mutation: Acidic Spines

Primordius fires Acidic Spines at players every 3 sec, inflicting 0 Nature damage to all players within 5 yards of the targets.

Mutation: Pathogen Glands

Allows Primordius to spray a Volatile Pathogen at a player, inflicting 2,484 Nature damage every 1 sec. for 10 sec.

Mutation: Metabolic Boost

A hyperactive metabolism allows Primordius to use abilities more often and increases attack speed by 50%.

Mutation: Erupting Pustules

Pustules erupt every 10 sec, showering the area with corrosive blood that inflicts 0 Nature damage within 2 yards of the impact.

Living Fluid

Living fluid seeps from the pools surrounding Primordius's lair and these oozes slowly make their way to Primordius.

Mutate Primordius

If a Living Fluid reaches Primordius, it is absorbed, increasing Primordius's current mutation level.

Mutagenic Pool

When a Living Fluid dies, it leaves behind a Mutagenic Pool that can mutate Primordius or players.

Mutate Primordius

When Primordius steps on a Mutagenic Pool, it is absorbed, increasing Primordius's current mutation level.

Mutate Player

When a player steps on a Mutagenic Pool, it is absorbed, inflicting 1,242 Nature damage and causing a helpful mutation. If 5 mutations are present, the mutation will be a harmful mutation. If a mutated player is dispelled, all mutations are removed.

Helpful Mutation: Thick Bones

The player's bones become thick and powerful, increasing all stats by 5%.

Harmful Mutation: Fragile Bones

The player's bones become thin and brittle, reducing all stats by 10%.

Helpful Mutation: Clear Mind

The player's mind becomes clear and focused, increasing Mastery by 10%.

Harmful Mutation: Clouded Mind

The player's mind becomes clouded and unfocused, reducing Mastery by 20%.

Helpful Mutation: Improved Synapses

The player's neural synapses fire more quickly, increasing Haste by 10%.

Harmful Mutation: Dulled Synapses

The player's neural synapses fire more slowly, reducing Haste by 20%.

Helpful Mutation: Keen Eyesight

The player's eyesight becomes exceptionally keen, increasing Critical Strike chance by 10%.

Harmful Mutation: Impaired Eyesight

The player's eyesight becomes exceptionally poor, reducing Critical Strike chance by 20%.

Fully Mutated

When a player acquires 5 helpful mutations, they become Fully Mutated, allowing full damage to be dealt to Primordius. Additional mutations after this point will be harmful.

Volatile Pool

When a Living Fluid dies, it will rarely leave behind a Volatile Pool that can mutate Primordius or Players.

Mutate Primordius (Volatile)

When Primordius steps on a Volatile Pool, it is absorbed, increasing Primordius' current mutation level to its maximum and healing Primordius for 10% of his maximum health.

Mutate Player (Volatile)

When a player steps on a Volatile Pool, it inflicts 2,483 Nature damage and causes a harmful mutation every 1 sec. If a mutated player is dispelled, all mutations are removed.

Viscous Horror

A heavily-mutated creature made of the same fluid that spawned Primordius.

Black Blood

The Viscous Horror spreads its mutated blood to its current target, inflicting 0 Nature damage every 3 sec and causing the afflicted player's attacks to coat the enemy in Black Blood, inflicting 0 additional Nature damage to Primordius. This effect lasts 1 min and stacks.

Deadly Mutagen

If a Viscous Horror gets close to Primordius, the mixture of mutative energies will cause it to explode, inflicting 0 Nature damage to all players.

Submit your own strategy tip

Got a tip for Primordius? Submit it — our team will review it and may add it to the guide.

In-depth tactics & live lookups right inside Discord:

/boss guide Primordius
Join Discord