Inevitable, Rokyamut

Family: Inevitable

Gargantuan construct (inevitable), lawful neutral

Armor Class 19 (natural armor)
Hit Points 356 (23d20+115)
Speed 50 ft., fly 40 ft.

23 (+6) 11 (+0) 21 (+5) 18 (+4) 17 (+3) 18 (+4)

Saving Throws Dex +5, Int +8, Wis +8, Cha +9
Skills Insight +8, Intimidation +9, Perception +8
Damage Immunities poison
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities charmed, frightened, paralyzed, poisoned, unconscious
Senses darkvision 60 ft., passive Perception 18
Languages all
Challenge 13 (10,000 XP)


  • Immutable Form. An inevitable is immune to any spell or effect that would alter its form.
  • Innate Spellcasting. The rokyamut’s innate spellcasting ability is Intelligence (spell save DC 17). The rokyamut can innately cast the following spells, requiring no material components:
  • Magic Resistance. The inevitable has advantage on saving throws against spells and other magical effects.
  • Magical Attacks. The inevitable’s weapon attacks are magical.
  • Symbological Weaponry. A rokyamut can conjure a two-dimensional mathematical symbol of rigid perfection into one or more of its hands without using an action. If they leave its grasp, these blade-like weapons disappear at the beginning of its next turn.


  • Multiattack. The rokyamut makes four fist or razor attacks.
  • Fist. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 16 (2d6+6) bludgeoning damage.
  • Symbological Attack. Melee or Ranged Weapon Attack: +11 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 16 (2d6+6) radiant damage.
  • Arrow of Logic (3/day). One creature within 90 feet it can see takes 60 radiant damage, or 90 radiant damage if the target is an aberration.
  • Irreducible Equation (1/day). Creatures in a 30 foot cube emanating from it take 30 radiant damage. A creature that takes damage must make a DC 16 Wisdom saving throw or be stunned until the royamut’s next turn.
  • Logical Gate (1/day). The rokyamut conjures a portal linking an unoccupied space it can see within 60 ft. to a precise location on a different plane of existence. The portal is a circular opening, which it can make 5 to 20 feet in diameter. It can orient the portal in any direction it chooses. The portal lasts as long as it concentrates, like a spell, to a maximum of 1 minute. The portal has a front and a back on each plane where it appears. Travel through the portal is possible only by moving through its front. Anything that does so is instantly transported to the other plane, appearing in the unoccupied space nearest to the portal. Deities and other planar rulers can prevent portals created by this ability from opening in their presence or anywhere within their domains.


  • Prudent Positioning (3/day). The rokyamut uses the Disengage action as a bonus action.


Rokyamuts are rigid defenders of mathematical laws and geometric truths, seeking out those who would bend space or subvert the rules of reality. Their targets are primarily aberrant aliens, plane-twisting outsiders, and cosmic calamities, but they oppose any creatures that view the immutable laws of physics as suggestions rather than rules. Rokyamuts are juggernauts of stability found in the warped places of the multiverse.

Section 15: Copyright Notice

Mechanical Monsters (5E) © 2023, Legendary Games; Authors: Jason Nelson, Miguel Colon, Robert J. Grady, Nicholas Hite, Matt Kimmel, Michael Mifsud, James-Levi Cooke, Dan Dillon, Mike Myler, Ismael Alvarez, Jeff Lee, John Lynch.

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