size”>Large construct, unaligned

Armor Class 22 (natural armor)
Hit Points 157 (15d10+75)
Speed 60 ft., climb 40 ft., swim 40 ft.

24 (+7) 20 (+5) 20 (+5) 13 (+1) 15 (+2) 8 (-1)

Saving Throws Int+6, Wis+7, Cha+4
Skills Athletics +12, Insight +7, Perception +12, Stealth +10
Damage Vulnerabilities lightning
Damage Resistances acid, fire, thunder
Damage Immunities cold, poison, psychic
Condition Immunities exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 120 ft., passive Perception 22
Languages telepathy 200 ft.

Challenge 15 (13,000 XP)


  • Arcane Eyes. The porosi can see magical auras within 60 feet, and learn their school of magic, if any, and can see magical auras through barriers thinner than 5 feet of stone, 1 foot of common metal, 1 inch of lead, or 10 feet of wood or dirt.
  • Charge. If the porosi moves at least 20 feet straight toward a target and then hits it with a devastating slash attack on the same turn, the target takes an extra 18 (4d8) slashing damage. If the target is a creature, it must succeed on a DC 20 Strength saving throw or be forced prone.
  • Dark Sight. Magical darkness doesn’t impede the porosi’s darkvision.
  • Incredible Leap. The porosi can high jump 30 feet and long jump up to 45 feet.
  • Heightened Wavelength. The porosi emits an ultrasonic (and nearly undetectable) frequency that causes all lesser Trekth creations to operate more efficiently, working in tandem to determine target ranges, weapon trajectories, and tactical movement. Jorezistent within 30 feet of the porosi gain a +1 bonus to Armor Class, attacks, damage rolls, and saving throws. A jorezistent can only benefit from one porosi’s Heightened Wavelength at a time.


  • Multiattack. The porosi attacks twice: once with its blade-arm and once with its claw.
  • Blade-Arm. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 16 (2d8+7) magical slashing damage plus 18 (4d8) thunder damage.
  • Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 12 (1d10+7) bludgeoning damage plus 9 (2d8) force damage. If the target is a creature, it is grappled (escape DC 20).
  • Devastating Slash. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 34 (6d8+7) magical slashing damage plus 18 (4d8) thunder damage.


As enigmatic as their creators, porosi are among the most dangerous servants of the Trekth and capable of killing most creatures with one single, devastating strike. Despite the size of these automatons, they are remarkably agile and have uncanny precision with the humming adamantine blades that extend from their right arms.

Section 15: Copyright Notice

Epic Depths © 2021 Mike Myler, published under license by Legendary Games.

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