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Pain is an illusion of the senses, fear is an illusion of the mind, beyond these only death waits as silent judge over all

Forget no insult, my sons, as I have never forgotten those of my father, of the Emperor, nor those of Horus. Forgive no slight or grievance. Hold your bitterness deep within, and there let it fester. Let it roil and squirm and churn, until you are filled with bile so poisonous that all you touch falls to ruin. Thus shall you serve Nurgle best. Thus shall you spread his virulent gifts across the false Imperium, and watch its final rotting


Mortarion, also known as the Death Lord or the Prince of Decay after he turned to Chaos, was one of the original twenty (later reduced to eighteen) Primarchs created by the Emperor of Mankind. He was given command of the Death Guard Space Marine Legion on the arrival of the Emperor to his homeworld of Barbarus, but he turned to the forces of Chaos during the Horus Heresy. At present, Mortarion is the greatest Daemon Prince of Nurgle and the Daemon Primarch of the Death Guard Chaos Space Marines.

Powers and Stats

Tier:  At least High 8-C, likely far higher | At least High 8-C, likely far higher | At least 4-B, likely higher | At least 2-C

Name: Mortarion, the Death Lord, the Reaper of Men, the Prince of Decay, the Angel of Plagues

Origin: Warhammer 40,000

Gender: Male

Age: Over 10,000 years old, irrelevant in the Warp

Classification: Primarch of the Death Guard Space Marines, Daemon Prince of Nurgle

Powers and Abilities:

Superhuman Physical CharacteristicsGenius Intelligence, Enhanced SensesImmortality (Types 1 and 3), Regeneration (Low-Mid), Large Size (Type 0; Mortarion was stated to be twice the height of a mortal man[1]. Should be comparable to Primarchs like the Lion who's stated to be a little under 3 meters tall[2]), Weapon Mastery (Extremely skilled in a wide variety of weaponry to an extent far greater than what could ever be achievable by a regular human), Martial Arts (As a Primarch, Mortarion is one of the best close-quarters fighters in the entire galaxy), Information Analysis (Can accurately analyze any chemical he eats/tastes and break them down if required[3]), Limited Memory Manipulation (Can eat creatures/people and absorb part of their memories from their DNA/RNA[3]), Technology Manipulation (His skin can directly connect and interface with his armor, among several other pieces of Astartes equipment[4]), Vehicular Mastery, Acid Manipulation (With Phosphex Bombs), Plasma Manipulation (With the Lantern), Matter Manipulation and Durability Negation (Power weapons generate a field of energy around themselves that splits the bonds between matter[5], making it easier to break through targets), Forcefield Creation (Via Iron Halo[6]), Teleportation via Dimensional Travel, Aura (Primarchs are said to contain an overwhelming aura that completely baffles regular humans, as well as sometimes Astartes. Their presence in the Warp is so powerful and influencing that Magnus reduced several Remembrancers to tears over his seeming divinity[7], while Russ could make Ahzek Ahriman himself kneel before him with his sheer presence[8]), Mind Manipulation and Soul Manipulation (Primarchs are capable of attacking on a physical, mental, and spiritual level[9])

Resistance to Magic, Telepathy, Mind ManipulationEmpathic ManipulationSoul Manipulation, Reality Warping, Madness Manipulation, Aura (Resistant to all the myriad of different attacks that can be made on him by the powers of the Warp, as well as most of the powers of other Primarchs), Disease Manipulation, Poison Manipulation (Astartes are practically immune to all diseases and poisons, and their Primarchs should logically be even tougher. Furthermore, as befitting of his Legion, Mortarion is far tougher against diseases and poisons than even his fellow Primarchs, claiming that they themselves would possess difficulty staying on his home planet of Barbarus. In the time it took hundreds of humans to die to the Destroyer Plague, Mortarion had only begun to develop blisters[10]), Corruption, Radiation Manipulation (Should almost be entirely immune to the effects of radiation exposure, thanks both to his Power Armor and enhanced physiology), Heat Manipulation (Astartes are incredibly resistant towards extremes of hot and cold, and logically their Primarchs should be far superior), Pain Manipulation (Astartes possess the physiology and mental training to shrug off debilitating injuries, and their Primarchs should easily scale. Furthermore, the Death Guard are known particularly for their sheer resistance, which they inherited from Mortarion's gene-seed)

All previous abilties to a much higher degree, Immortality (Types 3, 4, 8, and 9; Daemons cannot die in the typical sense, only being sent back to the Warp when killed in the materium. Whether or not they come back is entirely dependent on if their God allows them to[11]), Regeneration (Low-Godly overtime; Upon physical death or banishment, Daemons will simply regenerate in the Warp as long as the ideas and metaphors that they rely on have not been affected[12]), Disease Manipulation and Poison Manipulation (Mortarion, as among one of Nurgle's most prized Daemon Princes, possesses access to some of his most virulent and horrifying diseases and toxic compounds, which can have a myriad of devastating effects, such as rotting away the victim's soul along with their body[13]), Large Size (Type 0, Daemon Mortarion is 30 feet tall[1]), Self-Sustenance (Type 1, 2 and 3; Being a daemon, Mortarion has no mortal requirements), Fragrance Manipulation (Mortarion is always surrounded by a dense, stinking fog, which is so overwhelming that it defies any kind of description, as human senses lacked the capacity to fully experience the stench. The Justaerin were brought to their knees from the stench and Abaddon's omophagea, a genhanced implant that is designed to process dead matter, was involuntarily triggered[14]), Possession and Dream Manipulation (Even Lesser Daemons can reach beyond the veil and possess mortals, even entering their dreams to do so[15]), Dimensional Travel (Capable of travelling from the Warp into the Materium[16]), Damage Reduction (Ranged weaponry is incredibly ineffective when used against a daemon, requiring more traditional weapons to fully banish them[17]), Madness Manipulation (Type 3) and Corruption (Types 1 and 2; Looking upon a daemon can cause insanity and corrupt the mind, body, and soul of an individual), Enhanced Soul Manipulation (The powers of daemons inherently utilize and affect the soul), Reality Warping (Passively warps reality with his presence[18]), Summoning (Powerful Daemons are capable of summoning lesser daemons to aid them in combat[19]), Law Manipulation and Chaos Manipulation on his Daemon World

All previous resistances to a much higher degree.

Attack Potency: At least Large Building level, likely far higher (Comparable to the other Primarchs. Battled with Jaghatai Khan, with him being considered the second strongest Primarch by him, despite losing in the end[24]) | At least Large Building level, likely far higher (Much stronger than his previous self[18]. Fought against Jaghatai Khan again, with both being killed in the end[18]. Fought the resurrected Roboute Guilliman, with Mortarion being far stronger than him[25]. Defeated Daemon Primarch Perturabo[26]) | At least Solar System level, likely higher (Superior to Bloodthirsters within the Eye of Terror who can grow to the size of solar systems[27]. Should be comparable to the other Daemon Primarchs) | At least Low Multiverse level (Should be comparable to Daemon Primarch Magnus, albeit somewhat weaker)

Speed: At least Subsonic movement speed (Should be far faster than regular Marines), with Massively FTL+ reactions/attack speed (Comparable to Sanguinius) | At least Subsonic movement speed, with Massively FTL+ reactions/attack speed (Far faster than before. Stated by Ahzek Ahriman to be able to strike at him in a nanosecond[28]) | At least Subsonic movement speed, with Massively FTL+ reactions/attack speed (Should be comparable to before) | Immeasurable (Beyond the concepts of time, space, or distance)

Lifting Strength: Class K (Should be comparable to Angron) | At least Class K | At least Class KImmeasurable

Striking Strength: At least Large Building Class, likely far higher | At least Large Building Class, likely far higher | At least Solar System Class, likely higher | At least Low Multiversal

Durability: At least Large Building level, likely far higher (Has battled with other Primarchs) | At least Large Building level, likely far higher | At least Solar System level, likely higher | At least Low Multiverse level

Stamina: Superhuman (Primarchs are capable of fighting with shattered ribs, caved in abdomens and even fractured skulls[29]. Nothing short of a killing blow can stop them, and even their immensely lesser Space Marine sons can fight for weeks on end without stop) | Infinite | Infinite | Infinite

Range: Several meters with Silence, likely a couple kilometers with the Lantern | Several meters with Silence, at least planetary with his poisonous aura, likely far higher with psychic and daemonic abilities (Scaling off lesser daemons that can warp or grow to the size of entire star systems) | Several meters with Silence, at least planetary with his poisonous aura, likely far higher with psychic and daemonic abilities (Scaling off lesser daemons that can warp or grow to the size of entire star systems) | Hyperversal

Standard Equipment:

  • Silence: A massive, two-handed battle scythe which Mortarion still carries into battle. The blade alone is as long as most humans are tall. Its exact origins are unknown. Some believe it to be xenos in origin, while others believe it was once carried by Mortarion's adopted father, the former Overlord leader of planet Barbarus, Necare.
  • The Lantern: An energy blaster far more powerful than a Plasma Pistol which Mortarion uses as a sidearm. Once fired, a destructive beam of energy can burn through multiple enemies on its way to its true target. Just like Silence, it is of unknown origin.
  • The Barbaran Plate: Designed by Mortarion himself, this armor provides insane protection while also accounting for the wearer's environmental needs. The armor synthesizes trace amounts of the poisonous vapors found in Barbarus' atmosphere, combining them with the air the Primarch breathes.
  • Phosphex Bombs: Mortarion carries numerous, compact bombs which utilize the rare and highly corrosive material known as Phosphex. When the bombs explode, the Phosphex reacts with the air, becoming a seething green mist which is attracted to even the slightest movement. Upon contact, the substance will burn through metal and relentlessly eat away at organic tissue, not being stopped by anything short of a complete vacuum.

Intelligence: Extraordinary Genius (Each Primarch possesses intelligence far above what any unaugmented person and even most Space Marines are capable of achieving, and they are each masters in their own respective fields of combat, being considered the greatest generals humanity has ever produced. An incredibly skilled military leader, combatanbt, administrator, and more, as befitting of a Primarch. Trained and honed from an extremely young age in the ways of warfare, and particularly gifted in the ways of attrition wars and chemical weaponry, and was lauded by his brother Primarchs to be one of, if not the most resilient of them all.) | At least Extraordinary Genius, likely far higher (Possesses a far vaster pool of knowledge than ever before, and should presumably be capable of witnessing a good chunk of the galaxy at once)

Weaknesses: None notable | Cannot manifest his full power outside of the Warp. His true name can be used to bind him and even completely immobilize him | His true name can be used to bind him and even completely immobilize him | None notable

Key: Loyalist | Daemon PrinceIn the Eye of Terror | In the Warp



Notable Victories:

Notable Losses:

Inconclusive Matches:


  1. 1.0 1.1 Dark Imperium: Plague War; Chapter Fourteen
  2. Descent of Angels; Chapter Sixteen
  3. 3.0 3.1 Space Marine Codex: 5th Edition; pg 10
  4. Space Marine Codex: 5th Edition; pg 11
  5. The Devastation of Baal; Chapter Twenty One
  6. Codex: Space Marines (5th Edition); pg 52
  7. A Thousand Sons; Chapter Three; pg 24
  8. A Thousand Sons; Chapter Eleven; pg 94-95
  9. A Thousand Sons; Chapter Thirty One
  10. Buried Dagger
  11. 11.0 11.1 Codex: Chaos Daemons (8th Edition); pg 7
  12. Codex: Chaos Daemons (8th Edition); pg 7
  13. Codex: Chaos Daemons (5th Edition); pg 34
  14. The Lost and the Damned; Chapter Fifteen
  15. Codex: Chaos Daemons (5th Edition); pg 15
  16. Codex: Chaos Daemons (5th Edition); pg 16
  17. Watchers of the Throne: The Emperor's Legion
  18. 18.0 18.1 18.2 Warhawk; Chapter Twenty Four
  19. 19.0 19.1 Codex: Chaos Daemons (5th Edition); pg 7
  20. 20.0 20.1 20.2 Codex: Chaos Daemons (8th Edition); pg 6
  21. A Thousand Sons; Chapter Ten; pg 85
  22. Gathering Storm - Rise of the Primarch; pg 38
  23. Gathering Storm - Rise of the Primarch; pg 38
  24. Scars; Chapter Twenty Two
  25. Dark Imperium: Godblight; Chapter Thirty Three
  26. Codex: Death Guard (8th Edition); pg 23
  27. Eye of Terror
  28. Saturnine; Chapter Five
  29. Betrayer; Chapter Twenty One


Discussion threads involving AbaddonTheDisappointment/Mortarion