Ultroloth

Kain’s 5e Monstrous Manual – Page 54 – Dicefreaks (tapatalk.com)

Medium fiend (daemon), neutral evil
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Armor Class 20 (natural)
Hit Points 231 (22d8 + 132)
Speed 30 ft., fly 60 ft.
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STR 21 (+5) DEX 19 (+4) CON 22 (+6) INT 24 (+7) WIS 22 (+6) CHA 23 (+6)
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Saves Con +12, Int +13, Wis +12
Skills Intimidation +12, Perception +12, Stealth +10
Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical weapons
Damage Immunities acid, poison
Condition Immunities charmed, frightened, poisoned
Senses truesight 120 ft., passive Perception 22
Languages Abyssal, Infernal, telepathy 120 ft.
Treasure longsword
Challenge 18 (10,000 XP)
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Innate Spellcasting. The ultroloth ‘s innate spellcasting ability is Charisma (spell save DC 20). They can innately cast the following spells, requiring no material components:
At will: alter self, clairvoyance, darkness, detect magic, detect thoughts, dispel magic, invisibility (self only), suggestion
3/day each: animate objects, dimension door, fear, wall of fire
1/day each: fire storm, mass suggestion

Magic Resistance. The ultroloth has advantage on saving throws against spells and other magical effects.

Magic Weapons. The ultroloth’s weapon attacks are magical.

Supernatural Awareness An ultroloth knows if it hears a lie spoken. It automatically detects magical sensors (such as that created by scrying) within 30 feet of it. It can detect the location of any aberration, celestial, elemental fiend, fey or undead within 30 feet, as well as consecrated and desecrated areas. It also can detect the location of any poison or disease, as well as identifying the type. It can employ either its detect magic and detect thoughts innate spells as a bonus action that requires no components.

ACTIONS
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Multiattack. The ultroloth can use its hypnotic gaze and make four melee attacks, three with its longsword and one with its touch.

Longsword Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) slashing damage plus 18 (4d8) poison damage.

Touch Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 18 (4d8) necrotic damage. If the target is a creature it must succeed on a DC 20 Constitution saving throw or gain 1 level of exhaustion.

Hypnotic Gaze. The ultroloth’s eyes sparkle with opalescent light as it targets one creature it can see within 30 feet of it. If the target can see the ultroloth, the target must succeed on a DC 20 Wisdom saving throw against this magic or be charmed until the end of the ultroloth’s next turn. The charmed target is stunned. If the target’s saving throw is successful, the target is immune to the ultroloth’s gaze for the next 24 hours.

Teleport. The ultroloth magically teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.

REACTIONS
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Displacement If the ultroloth is targeted with an attack, it imposes disadvantage on the attack and moves 5 ft. without provoking opportunity attacks.

Ultrodaemon

First appeared in the Monster Manual II (Gary Gygax, 1983) and converted by Scott Greene.
In the book of Daemons 

Ultrodaemon (Daemon)
Medium-Size outsider (Evil)
Hit Dice	13d8+52 (110 hp)
Initiative	+5 (+1 Dexterity, +4 Improved Initiative)
Speed	40 ft, Fly 60 ft (good)
AC	30 (+1 Dexterity, +19 natural)
Attacks	+1 vorpal longsword +21/+16/+11 melee; or 2 slams +20 melee
Damage	+1 vorpal longsword 1d8+8; or slam 1d6+7
Face/Reach	5 ft by 5 ft/5 ft
Special Attacks	Spell-like abilities, fascinating gaze, summon daemons
Special Qualities	Damage reduction 30/+3, SR 28, daemon qualities, telepathy, Darkvision 60 ft
Saves	Fort +12, Ref +9, Will +13
Abilities	Strength 25, Dexterity 13, Constitution 19, Intelligence 20, Wisdom 20, Charisma 16
Skills	Bluff +17, Climb +16, Concentration +20, Diplomacy +16, Hide +10, Jump +17, Knowledge (arcana) +19, Listen +21, Move Silently +15, Search +17, Sense Motive +15, Spellcraft +21, Spot +21
Feats	Blind-Fight, Cleave, Improved Initiative, Power Attack
Climate/Terrain	Any land and underground
Organization	Solitary, or troupe (1-2 ultrodaemons, 1 yagnodaemon, and 2-5 piscodaemons)
Challenge Rating	16
Treasure	Standard coins; double goods; standard items, plus +1 vorpallongsword
Alignment	Always neutral evil
Advancement	14-19 HD (Medium-size); 20-39 HD (Large)

Combat

Ultrodaemons will attack using either their fists or sword in combat. If pressed and things seem to be going against them, they may teleport away.

Spell-Like Abilities: At will—alter self, blasphemy, charm Person, color spray, contagion, desecrate, detect good, detect magic, detect thoughts, fear, greater invisibility, magic circle against good, polymorph self, produce flame, see invisible, silent image, and teleport without error (self plus 50 pounds of objects only);

1/day— fire storm, symbol of death, symbol of fear, symbol of insanity, symbol of pain, symbol of persuasion, symbol of strife, symbol of stunning, symbol of weakness, and wall of fire.

These abilities are as the spells cast by a 17th-level sorcerer (save DC 13 + spell level).

Fascinating Gaze (Su): As the spell Hold Person, 30 feet, Will save (DC 22).

Summon Daemons (Sp): Once per day an ultrodaemon can automatically summon 1d8 derghodaemons, 1d4 hydrodaemons, 1d4 piscodaemons,
or one yagnodaemon, mezzodaemon, arcanadaemon, or another ultrodaemon.

Daemon Qualities (Ex): Immune to poison and Paralysis, immune to mind-influencing effects; acid, cold, and fire resistance 20.

Telepathy (Su): Daemons can communicate telepathically with any creature within 100 feet that has a language.