Nycaloth

Large Fiend (Yugoloth), Neutral Evil

AC: 18

Initiative: +4 (14)

HP: 152 (16d10 + 64)

Speed: 40 ft., fly 60 ft.

STR
20 (+5)
DEX
11 (+0)
CON
19 (+4)
INT
12 (+1)
WIS
10 (+0)
CHA
15 (+2)

Skills: Perception +4, Stealth +4

Resistances: cold; fire; lightning

Immunities: acid; poison

Condition Immunities: poisoned

Senses: Blindsight 60 ft., Passive Perception 14

Languages: Abyssal, Infernal; telepathy 60 ft.

CR: 9 (XP 5,000; PB +4)

Habitat: Planar, Gehenna

Treasure: Armaments

Fiendish Restoration.

If the nycaloth dies outside Gehenna, its body dissolves into ichor, and it gains a new body instantly, reviving with all its Hit Points somewhere in Gehenna.

Magic Resistance.

The nycaloth has Advantage on saving throws against spells and other magical effects.

Actions

Multiattack.

The nycaloth makes two Mercurial Axe attacks.

Mercurial Axe.

Melee or Ranged Attack Roll: +9, reach 10 ft. or range 30/90 ft. Hit: 18 (2d12 + 5) Slashing damage plus 10 (3d6) Force damage. The axe magically returns to the nycaloth's hand immediately after a ranged attack.

Bonus Actions

Shadowy Teleport.

The nycaloth has the Invisible condition for 1 minute, and it teleports up to 30 feet to an unoccupied space it can see. The condition ends early immediately after it deals damage.

Find this creature in the encounter builder

Nycaloth

Source: Monster Manual (2025), p. 229 - Licenses and attribution