Frightful Fridays! Icosadaemon

Hello, and welcome to the first Frightful Fridays! of 2021. Today’s monster started off as a “celebration” of the previous year, and retains some of the original design I intended. Because I took the route of making it a daemon, I decided to remove its disease capabilities, since other daemons take care of that pretty well. If you truly wish to emulate last year, chuck a horde of leukodaemons in with this one.

I’ll be back soon with another monster. Thanks for reading!

This creature features a blood-red humanoid torso atop a multitude of purple, writhing tentacles. Its eyes look like rubies cut such that 20 facets face out from their sockets, and finely crafted tools tip all of its fingers.
Icosadaemon      CR 17
XP 102,400
NE Large outsider (daemon, evil, extraplanar)
Init +7; Senses darkvision 60 ft., true seeing; Perception +27
Aura mechanical failure (1 mile), reversed fortune (100 ft.), unholy aura (DC 24)
DEFENSE
AC
32, touch 20, flat-footed 25 (+4 deflection, +7 Dex, +12 natural, –1 size)
hp 270 (20d10+160)
Fort +24, Ref +19, Will +20
DR 10/good and silver; Immune acid, death effects, disease, poison; Resist cold 10, electricity 10, fire 10; SR 28
OFFENSE
Speed
40 ft., fly 50 ft. (average)
Melee 5 tentacles +27 (2d6+8)
Space 10 ft.; Reach 10 ft.
Spell-Like Abilities (CL 20th; concentration +26)
   Constant—true seeing, unholy aura
   At will—greater teleport (self plus 50 lbs. of objects only), ill omen[APG]
   3/day—dominate monster (DC 25), quickened ill omen[APG]
   1/day—summon (level 9, 1 icosadaemon, 50%, or 2d10 vulnadaemons, 75%)
STATISTICS
Str
26, Dex 25, Con 26, Int 20, Wis 19, Cha 23
Base Atk +20; CMB +29 (+31 sunder); CMD 50 (52 vs. sunder, can’t be tripped)
Feats Deft Hands, Improved Great Fortitude[B], Improved Iron Will[B], Improved Lightning Reflexes[B], Improved Sabotaging Sunder[UI], Improved Sunder, Lightning Reflexes, Magical Aptitude, Power Attack, Quicken Spell-Like Ability (ill omen), Sabotage Magic Item[UI], Sabotage Specialist[UI], Sabotaging Sunder[UI]
Skills Bluff +29, Craft (gemcutting, traps) +28, Disable Device +34, Fly +5, Intimidate +29, Knowledge (engineering) +28, Perception +27, Sense Motive +27, Sleight of Hand +34, Stealth +26, Use Magic Device +30
Languages Abyssal, Common, Draconic, Dwarven, Infernal; telepathy 100 ft.
SQ luck pool
ECOLOGY
Environment any (Abaddon)
Organization solitary or catastrophe (2–8)
Treasure double (20 rubies worth 2,000 gp each, other treasure)
SPECIAL ABILITIES
Ill Omen (Sp)
When an icosadaemon uses its ill omen spell-like ability, the target must roll three times and take the lowest result. Additionally, the target must succeed on a DC 26 Will save to use a prayer or good luck charm to negate one of the rolls. The save DC is Charisma-based.
Luck Pool (Su) As an immediate action, an icosadaemon can spend 1 point from its luck pool to change the result of any d20 roll to a 20 for any creature within 100 feet of it.
An icosadaemon starts combat with 1d8 points in its luck pool.
Mechanical Failure (Su) Any creature attempting a Disable Device check within 1 mile of an icosadaemon rolls twice and takes the less favorable result. If the device is triggered as a result of the check failing by 5 or more, the device deals maximum damage. If the device does not deal damage and ordinarily allows a save for its effects, it instead does not allow a save. This is a curse effect.
Reversed Fortune (Su) As a free action when a non-icosadaemon gets the maximum result on any roll (including rolls that are rerolled), the icosadaemon can force the roll to be treated as a 1. If this was a d20 roll, the icosadaemon can gain a tentacle attack (to a maximum of 10) or increase its luck pool by 1 point.
Additionally, when a creature within an icosadaemon’s aura rolls a specified result on a d20 roll, the creature making the roll can treat it as a 20 or reduce the icosadaemon’s luck pool by 1 point. The value starts as 1 at the beginning of combat, but as a swift action, the daemon can change the value to any number between 1 and 10, inclusive.

Icosadaemons personify death by calamity, either through random accidents or as the result of sabotage. They typically serve the Horsemen of Death and War, employing the magic and skills to bring doom to those who defy their masters. Though icosadaemons possess potent magic to inflict misfortune on their victims, they prefer to take direct action to achieve their aims. They are skilled crafters who litter their lairs with devious traps, and, during combat, they can quickly sabotage equipment held by their foes.

Icosadaemons explode in a shower of valuable and cursed rubies when they die. A creature in possession of an icosadaemon ruby is treated as if it is within the daemon’s mechanical failure and reversed fortune auras. Nothing short of a miracle or wish can remove the ruby’s curse.

A typical icosadaemon stands 10 feet tall and weighs 400 pounds.

ICOSADAEMON CREATURE 17
NE Large Daemon Fiend
Perception
+29; darkvision, true seeing
Languages Common, Dwarven, Daemonic; telepathy 100 feet
Skills Crafting +33, Deception +30, Intimidation +27, Stealth +27, Thievery +36
Str +8, Dex +6, Con +8, Int +5, Wis +4, Cha +6

AC 40; Fort +32, Ref +27, Will +28; +1 status to all saves vs. magic
HP 285; Immunities curses, death effects, negative; Weaknesses good 15
Aura of Mechanical Failure (aura, curse, divine, misfortune) 1 mile. If a creature attempts to Disable a Device within the aura must roll twice and use the lower result. On a critical failure when the creature attempts to Disable a Device, if the device inflicts damage, it deals maximum damage. If the device doesn’t inflict damage but allows a save against its effects, a creature making the save reduces the degree of success on their save by one step.
Aura of Reversed Fortune (aura, divine, fortune, misfortune) 100 feet. When a non-icosadaemon gets the maximum result on any roll (including rolls that are rerolled), the icosadaemon can force the roll to be treated as a 1. If this was a d20 roll, the icosadaemon increases its luck pool by 1 point. This aspect of the aura has the misfortune trait.
   Additionally, when a creature within the aura rolls a specified result on a d20 roll, the creature making the roll can treat it as a 20 or reduce the icosadaemon’s luck pool by 1 point. The value starts as 1 at the beginning of combat, but at the beginning of the daemon’s turn, it can change the value to any number between 1 and 10, inclusive. This aspect of the aura has the fortune trait.

Speed 30 feet, fly 50 feet
Melee [one-action] tentacle +33 (evil, magical, reach 10 feet), Damage 3d8+16 bludgeoning plus 1d6 evil
Ranged [one-action] bolt of ill omen +33 (evil, magical, range 60 feet), Effect 2d6 evil plus ill omen
Divine Innate Spells DC 38; 9th foresight; 5th dimension door; 4th dimension door (at will); Constant (6th) true seeing
Ill Omen (curse, magical, misfortune) For 1 minute or the next 4 d20 rolls, whichever occurs first, a creature hit by the icosadaemon’s bolt of ill omen attack must roll three times when rolling a d20 and take the lowest result.
Luck Pool [free-action] (divine, fortune) Trigger The icosadaemon rolls a d20. Effect The icosadaemon expends 1 point from its luck pool to change the result of the roll to 20.
The icosadaemon starts combat with 1d8 points in its luck pool.

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