• The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!

From Warhammer 40k, fear the planet eater Omniphages swarm


Goodmorning everyone, today I bring you something juicy. The dark age of technology of Warhammer 40k has always fascinated me with its machines and I decided to create one. The Omniphages swarm is a swarm of nanomachines that copy and paste from the wiki "And perhaps the most ubiquitous and dangerous of the weapons of this terrible war were the omniphages, swarms of intelligent, microscopic nano-machines that could consume everything across the surface of a world in only solar hours. ". Taking inspiration from the Gray Goo (Gray Goo – d20PFSRD) and the Hungry Void from the Competition of Epic Monster (Morrus' Unofficial Tabletop RPG News /threads/competition-design-an-epic-monster.217330/page-2) I produced these terrible machines. Greater Swarming Strike, Improved Swarming Strike, and Swarming Strike are 3pp feats that work in a similar way of Vital Strike: a single creature every round in the swarm area take quadruple the standard sward damage.


N Nano-Medium construct (robot, swarm)

Init +54 (Always first); Senses darkvision 60 ft., blindsight 300 ft., low-light vision; Perception +68


AC 69, touch 69, flat-footed 39 (+15 competence, +15 Dex, +6 divine, +15 dodge, +8 size)

hp 1.440 (40d20+640) regeneration 20 (epic, deific or mythic)

Fort +66, Ref +66, Will +60

Defensive Abilities dispersion, improved evasion, mind over body, swarm traits; Immune acid, construct traits, fire, pressure, weapon damage; Resistance all elements 30; SR 66

Weaknesses vulnerable to critical hits, vulnerable to electricity


Speed burrow 900 ft. (only hardness less that 40), fly 900 ft. (perfect), swim 900 ft.

Melee swarm (80d10 plus dismantle and distraction)

Space 10 ft.; Reach 0 ft.

Special Attacks dismantle (DC 57), distraction (DC 42), infest (DC 61), Mythic Power (10/day, Surge +1d12)


Str 1, Dex 40, Con —, Int 40, Wis 28, Cha 28

Base Atk +40; CMB —; CMD

Feats Ability Focus (infest)M, Aerial Roll, Dodge, Great Fortitude, Greater Swarming Strike, Improved InitiativeM, Improved Lightning ReflexesM, Improved Swarming Strike, Iron WillM, Lightning ReflexesM, Presence of Mind, Superior Initiative, Swarming Strike, Run

Epic Feats Epic Skill Focus (perception), Epic Skill Focus (survival), Good Fortitude, Good Reflexes, Good Will, Improved Dodge

Skills Appraise +61, Fly +80, Knowledge (all) +64, Perception +68, Sense Motive +58, Spellcraft +61, Stealth +77 (+87 when dispersed), Survival +65; Racial Modifiers +10 Stealth when dispersed

Languages Common, other (GM’s discretion) (can’t speak); telepathy (host only)

SQ adaptive learning, assimilate, consume, fine, starflight

Divine Ability intellectual body, intellectual soul, intellectual spirit, maven, perfect initiative, uncanny dodge


Assimilate (Ex)
When a omniphages slays a creature with its swarm or infest attack, it absorb the knowledge of the creature. After it assimilates a creature, a omniphages has detailed information about the victim’s identity and personality, has access to all of the victim’s memories and add all the languages know by the victim to its own. When a omniphages damage a creature with its swarm attack, it heal a number of hit points equal to the damage of its swarm attack. If used on an object, it heal 1d6 damage for every 20 square it consume (with a full movement, using the burrow speed for devour the ground, and using the Run feat for move x5, a omniphages with a space of 10 ft., it heal 180d6 [900 ft. x 5 movement with run ÷ 5 for the squares x 4 for the cube-shaped area feet on a side ÷ 20]).

Consume (Ex)
A creature or object reduced to 0 hit points by a omniphages swarm or infest attack is reduced to dust and destroyed (similar to disintegrate). A omniphages ignore harness less than 40.

Even though it is made up of much smaller individual nanomachines, a omniphages swarm counts as being made up of Fine-sized creatures for effects.

Dismantle (Ex)
Creatures damaged by a omniphages must succeed at a DC 57 Reflex save or a random piece of their equipment takes the same amount of damage, determined as though the target rolled a natural 1 on a saving throw, using the rules for items surviving after a saving throw. In addition, unattended objects in the area of a omniphages take damage if the swarm chooses to harm them. The save DC is Intelligence-based.

Dispersion (Ex)
As an immediate action, a omniphages can disperse, spreading itself across a cube-shaped area (3 x actually space) feet on a side. While dispersed, the omniphages deals no damage and can’t use its other special abilities until it reforms. A dispersed omniphages can hide in plain sight (as a ranger in her favored terrain) with a +10 bonus on its Stealth checks and doesn’t take additional damage from area effects for being a swarm. It takes 1 rounds for a dispersed omniphages to reform.

Infest (Ex)
As a standard action, a omniphages can infest a small or larger adjacent creature (Fortitude DC 61 negates), including constructs and undead. The omniphages moves inside the creature’s body, and can choose to deal or not deal its swarm damage (augmented with Greater Swarming Strike if it choose) to its host each round. It can’t use its dismantle ability while infesting a creature. A omniphages infesting a host can be expelled by any effect that cures disease, if the effect succeed a caster level check equal to this ability’s DC. Even effect that automatically remove disease (like Heal spell) must succeed a caster level check. Miracle or Wish spells automatically expel the omniphages without the need of a caster level. While inside a host, the omniphages swarm gains telepathy with him. The save DC is Intelligence-based.

Mind Over Body (Ex)
A omniphages add its Intelligence modifier to hit point and Fortitute save in place of Constitution and in addition it has maximum hit point per hit dice. A lesser omniphages count as a construct of the size of its space for calculating bonus hit points (the base omniphages has a space of 10 ft. and count as a Large construct). For every 100 HD of creature it consume (or 10 tons of object it consume), it increase its space as a creature of one size larger (long entry for calculate its space), increase its Intelligence score by +10. The maximum space (size) which can be obtained is Giga-Fine (98304 miles), after which all other size obtained instead spawn a standard omniphages swarm. The omniphages use Intelligence instead of Strength for calculate virtual size categories.

Mythic (Ex)
A omniphages has Mythic Power (10/day, Surge +1d12) and counts as a 10th-rank Mythic creature.

Starflight (Su)
A omniphages can travel in the void of outer space. It flies through space at incredible speeds. Although exact travel times vary, a trip within a single solar system normally takes 3d20 months, while a trip beyond normally takes 3d20 years (or more, at the GM’s discretion)—provided the omniphages knows the way to its destination.

Omniphages Construction
80th; Price 6,000,000 gp
Requirements Craft Robot, wish; Special creator must be caster level 80th; Skill Craft (mec hanical) DC 75; Cost 3,000,000 gp

log in or register to remove this ad

Remove ads