Nycaloth
Large Fiend (yugoloth), Neutral EvilAC 18
HP 152 (16d10 + 64)
Speed 40 ft., fly 60 ft.
STR
20 (+5)
Save +5
DEX
11 (+0)
Save +0
CON
19 (+4)
Save +4
INT
12 (+1)
Save +1
WIS
10 (+0)
Save +0
CHA
15 (+2)
Save +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
Traits
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. Hit or Miss: 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.