Ultroloth
Monster Manual (2025) p. 311
- Size
- Medium
- Type
- fiend (yugoloth)
- Alignment
- neutral evil
- AC
- 19
- Initiative
- 8
- Hit Points
- 221 (26d8+104)
- Speed
- walk 30 ft., fly 60 ft. (hover)
- Skills
- Deception +9, Stealth +8, Perception +7
- Resistances
- cold, fire, lightning
- Immunities
- acid, poison
- Condition Immunities
- charmed, frightened, poisoned
- Senses
- truesight 120 ft.
- Passive Perception
- 17
- Languages
- Abyssal, Infernal; telepathy 120 ft.
- Challenge
- 13
- Environment
- planar (lower)
Traits
Proficiency Bonus
+5
Treasure
Armaments: The monster's treasure hoard features magic items with the noted theme. The Dungeon Master's Guide details treasure hoards appropriate for each theme.
Fiendish Restoration
If the ultroloth 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 ultroloth has Advantage on saving throws against spells and other magical effects.
Actions
Multiattack
The ultroloth uses Hypnotic Gaze and makes two Mercurial Whip attacks.
Mercurial Whip
Melee Attack Roll: +9, reach 15 ft. Hit: 25 (6d6 + 4) Force damage, and the ultroloth can teleport the target up to 10 feet to an unoccupied space the ultroloth can see that isn't in the air.
Hypnotic Gaze
Wisdom Saving Throw: DC 17, each creature in a 30-foot Cone. Failure: 10 (3d6) Psychic damage, and the target has the Stunned condition until the start of the ultroloth's next turn. Success: The target is immune to this ultroloth's Hypnotic Gaze for 24 hours.
Spellcasting
The ultroloth casts one of the following spells, requiring no Material components and using Intelligence as the spellcasting ability (spell save DC 17):
- At will: Alter Self, Clairvoyance, Detect Magic
- 1/day each: Dimension Door, Fireball (level 5 version), Wall of Fire
Fiendish Guile (Recharge 4-6) (Bonus Action)
The ultroloth casts Dispel Magic, Invisibility (self only), Misty Step, or Suggestion, requiring no Material components and using the same spellcasting ability as Spellcasting.
recharge
D4
Spells
Dispel Magic [5.5e], Invisibility [5.5e], Misty Step [5.5e], Suggestion [5.5e], Alter Self [5.5e], Clairvoyance [5.5e], Detect Magic [5.5e], Dimension Door [5.5e], Fireball [5.5e], Wall of Fire [5.5e]
Other data
description
With uncanny patience and fiendish cunning, ultroloths manipulate mortals and their fellow yugoloths alike, seeking to hoard power and spread suffering. These sinister masterminds often work with other yugoloths, but they might compel nearly any creature into their service. If coercion doesn't work, ultroloths use their eerie eyes and innate magic to hypnotize or charm targets.
Ultroloths strive to achieve planes-spanning plots. Roll on or choose a result from the Ultroloth Conspiracies table to inspire such villainy.
Ultroloth Conspiracies:
| 1d6 | The Ultroloth Schemes To... |
|---|---|
| 1 | Convince cultists their god has forsaken them. |
| 2 | Destabilize a nation and rule the chaos. |
| 3 | Incite a calamity and hold a world hostage. |
| 4 | Provoke hostilities between immortal armies and sell magic weapons to both sides. |
| 5 | Steal an invention and slay all who know of it. |
| 6 | Unleash fiendish hordes on a foe's homeland. |