Necroflesh Monarch

Gargantuan undead, neutral evil

Armor Class 13
Hit Points 319 (22d20 + 88)
Speed 30 ft.

23 (+6) 16 (+3) 18 (+4) 1 (-5) 12 (+1) 18 (+4)

Saving Throws Con +9, Int +0, Wis +6
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, paralyzed, prone, poisoned
Senses blindsense 120 ft. (blind beyond this radius), passive Perception 11
Challenge 16 (15,000 XP)
Proficiency Bonus +5


  • Death is Not the End. If a creature dies within 1 minute of taking damage from the necroflesh monarch’s black bile attack, the creature must make a DC 17 Wisdom saving throw before it dies. On a failure, the creature’s flesh rapidly liquifies and it magically rises as a mindless skeleton under the monarch’s control.
  • Undead Nature. The necroflesh monarch doesn’t require air, drink, or sleep.


  • Multiattack. The necroflesh monarch makes two pseudopod attacks or two black bile attacks. It can then make a bite attack or use Consume the Dead.
  • Pseudopod. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 28 (4d10 + 6) bludgeoning damage, and the target is grappled (escape DC 16). Until this grapple ends, the target is restrained.
  • Black Bile. Ranged Weapon Attack: +11 to hit, range 60 ft., one target. Hit: 10 (3d6) acid damage plus 10 (3d6) necrotic damage.
  • Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one Large or smaller creature the monarch is grappling. Hit: 24 (4d8 + 6) piercing damage, the creature is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the monarch, and it takes 28 (8d6) necrotic damage at the start of each of the monarch’s turns. If the monarch takes 35 damage or more on a single turn from a creature inside it, or if the monarch dies, the monarch regurgitates all swallowed creatures, which fall prone in a space within 10 feet of it.
  • Consume the Dead. The monarch grabs a willing or mindless Medium or larger undead creature within 20 feet of it and sucks it into its oozy body. The undead creature is destroyed and the monarch magically regains 30 hit points.


  • Deadly Pustules. When a creature within 15 feet of the necroflesh monarch hits it with a melee attack, the monarch makes a black bile attack against that creature.


A monstrosity of liquified flesh and bone, the necroflesh monarch is an undead ooze made from the muscle, fat, and sinew of countless victims, all turned toward undeath and combined into one pulsing, hulking form.

Necroflesh monarchs wander aimlessly between remote villages, across desolate deserts, and beneath venerable mountains, always on the hunt for more victims to add to their quivering, corpulent body. When a monarch swallows a living creature, the victim struggles for breath before eventually succumbing to the ooze’s life-leaching internal acids. The flesh and bone of a slain victim melt and become subsumed into the monarch’s corpulent, amorphous form. In this way, a necroflesh monarch grows in both size and power.

Strangely, and perhaps thankfully, a necroflesh monarch makes no distinction between prey of high or low provenance. To these mindless meat-beings, the most regal queen is of equal value to the lowliest peasant.

Though mindless, the necroflesh monarch possesses a few clever, if rudimentary, survival instincts. For instance, to make sure it never goes without a meal, a monarch tends to keep a troop or even a small army of skeletal warriors by its side at all times. These mindless undead follow the same primeval protocols as the necroflesh monarch, plodding aimlessly along and swinging their limbs violently to attack.

A monarch doesn’t rely on its bony minions for protection-rather, it keeps them as a mobile food source to tap into during lean times.

The signs of a necroflesh monarch attack are obvious to anyone who knows what to look for: crushed houses, steaming puddles of black bile, and not a single body in sight. For all their brutish simplicity, these oozy behemoths know at least enough not waste a single morsel.

Section 15: Copyright Notice

Battlezoo Bestiary (5E) © 2022, Skyscraper Studios, Inc.; Authors: William Fischer, Stephen Glicker, Paul Hughes, Patrick Renie, Sen.H.H.S., and Mark Seifter.

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