Paimon, the Concordant Lord of Secrets

Huge fiend (devil), lawful evil

Armor Class 22 (natural armor)
Hit Points 825 (50d12 + 450)
Speed 40 ft., fly 80 ft. (hover)

STR	DEX	CON	INT	WIS	CHA
24 (+7)	18 (+4)	30 (+10)	32 (+11)	28 (+9)	34 (+12)

Saving Throws Dex +12, Con +18, Wis +17, Cha +20
Skills Arcana +19, Deception +20, Insight +17, Persuasion +20
Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison, necrotic; psychic from magic
Condition Immunities charmed, frightened, poisoned
Senses truesight 120 ft., passive Perception 19
Languages Infernal, Common, telepathy 120 ft.
Challenge 35 (1,050,000 XP)

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Traits

Legendary Resistance (5/Day). If Paimon fails a saving throw, he can choose to succeed instead.
Aura of Domination. Creatures of Paimon’s choice within 30 ft. at the start of their turn must succeed on a DC 28 Wisdom save or be charmed for 1 minute.
Master of Secrets. Paimon knows all divination and enchantment spells of 9th level or lower and can cast them at will without components.
Innate Spellcasting. Charisma is his spellcasting ability (spell save DC 28). He can cast the following spells, requiring no material components:

• At will: detect thoughts, suggestion, counterspell, plane shift (self only), true seeing
• 3/day each: dominate person, modify memory, feeblemind, mass suggestion, scrying
• 1/day each: dominate monster, foresight, wish, miracle, time stop

Actions

Multiattack. Paimon makes three attacks: two with his Infernal Scepter and one with his Infernal Voice.
Infernal Scepter. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 30 (4d10+7) bludgeoning + 18 (4d8) fire damage.
Infernal Voice (Recharge 5–6). Paimon emits a thunderous roar. Each creature within 60 ft. that can hear him must succeed on a DC 28 Con save or take 45 (10d8) thunder damage and be stunned until the end of its next turn.
Grant Forbidden Knowledge. Paimon targets one creature he can see within 60 ft. The target must succeed on a DC 28 Int save or gain proficiency in three skills or tools of Paimon’s choice for 24 hours. On a failed save by 5 or more, the target also takes 36 (8d8) psychic damage and is cursed: they cannot willingly end concentration on spells during that duration.

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Legendary Actions

Paimon can take 5 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. Paimon regains spent legendary actions at the start of his turn.

• Scribe: Paimon causes a binding rune to swirl on a surface within 30 ft. Any creature within the rune’s 10-ft. radius must make a DC 28 Dex save or be restrained by ethereal chains until the end of its next turn.
• Dominate Thought (Costs 2 Actions): Paimon targets one charmed creature. It must immediately use its reaction to move up to its speed and attack a target of Paimon’s choice.
• Arcane Echo (Costs 3 Actions): Paimon replicates and casts a spell just used in the current round by a creature within 120 ft. (spell save DC 28).
• Unmake Will (Costs 5 Actions): One creature Paimon can see within 60 ft. must succeed on a DC 28 Wis save or fall unconscious, their mind fractured by infernal knowledge.

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Lair Actions

When fighting within the boundaries of the Obsidian Archive, Paimon can invoke 3 lair actions. On initiative count 20 (losing initiative ties), he takes one lair action:

• Rune of Silence: Paimon inscribes a planar rune. Until initiative count 20 on the next round, no sound originates from within a 30-ft. sphere, and creatures in the sphere are deafened.
• Mind Shackles: Ethereal chains lash out from the walls. One target Paimon chooses must succeed on a DC 28 Con save or have its speed halved and vulnerability to psychic damage until the next round.
• Archive’s Whisper: All creatures in a 60-ft. corridor hear the Archive murmur. Each must make a DC 28 Wis save or drop held objects and be frightened for 1 minute.

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Regional Effects

The region containing the Obsidian Archive is warped by Paimon’s presence. The following effects apply within 6 miles of the Archive:

• Whispers on the Wind: Scholars and spellcasters have disadvantage on concentration checks as fleeting secrets distract them.
• Infernal Ink: Written text within the area shifts meaning; any attempt to read or copy written languages requires a DC 20 Int (Investigation) check or produces a garbled result.
• Dream Intrusions: Once per night, any creature within 6 miles sleeping must succeed on a DC 20 Wis save or have their dreams invaded by Paimon’s visions, gaining one level of exhaustion upon waking.

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Mount: Fiendish Camel

Large fiend (devil), unaligned

Armor Class 16 (natural armor)
Hit Points 110 (13d10+39)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
20 (+5)	14 (+2)	17 (+3)	2 (−4)	12 (+1)	6 (−2)

Skills Perception +3
Damage Resistances fire, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 13
Languages understands Infernal but can’t speak

Charge. If the camel moves at least 20 ft. straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) piercing damage and must succeed on a DC 15 Strength saving throw or be knocked prone.
Gore. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 17 (2d10+5) piercing damage.

Paimon, Concordant Lord of Secrets

CR 25
XP 1,638,400
NE Huge Outsider (Chaotic, Extraplanar, Legal)
Init +4; Senses darkvision 60 ft., true seeing; Perception +28
Aura compelling presence (30 ft., DC 27)

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Defense

AC 30, touch 14, flat-footed 26 (+4 Dex, +16 natural)
hp 300 (24d10+144)
Fort +20, Ref +16, Will +23
DR 10/good and silver; Immune fire, poison, sleep effects, fear effects; Resist cold 10, electricity 10
SR 30

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Offense

Speed 40 ft., fly 80 ft. (good)
Melee infernal scepter +28/+23/+18 (2d8+10 plus 1d6 fire)
Ranged infernal bolt +25 ranged touch (4d6 fire)
Special Attacks compelling edict (DC 27 Will), domain powers (knowledge, trickery), mass dominate (DC 27), infernal cackle (30-ft. cone, 4d6 sonic, DC 27 Fort for half and deafened)
Spell-Like Abilities (CL 24th; concentration +28)

• At will—detect thoughts, suggestion, true seeing
• 3/day—dominate person (DC 27), scrying
• 1/day—dominate monster (DC 27), miracle

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Statistics

Str 28, Dex 18, Con 22, Int 24, Wis 20, Cha 26
Base Atk +24; CMB +34; CMD 48
Feats Combat Casting, Combat Reflexes, Iron Will, Lightning Reflexes, Spell Focus (Enchantment), Greater Spell Focus (Enchantment), Improved Initiative, Toughness
Skills Bluff +34, Diplomacy +34, Intimidate +32, Knowledge (arcana) +32, Knowledge (religion) +32, Knowledge (planes) +32, Knowledge (history) +32, Perception +28, Sense Motive +28, Spellcraft +32
Languages Abyssal, Celestial, Common, Infernal, telepathy 120 ft.

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Special Abilities

Compelling Presence (Su): Creatures within 30 ft. must succeed on a DC 27 Will save or be enthralled (as charm monster) for 1 round; these creatures are immune for 24 hours after.

Compelling Edict (Su): Three times per day as a free action, issue a one-sentence edict; affected creatures within 60 ft. must succeed on a DC 27 Will save or follow for 1 round.

Infernal Cackle (Su): 30-ft. cone, sonic damage 4d6, DC 27 Fort save for half and deafened for 1d4 rounds; usable 3 times/day.

Domain Powers (Ex): Gain knowledge is power (foreknowledge of one target) and mask of a thousand faces (as minor image at will).

Mass Dominate (Sp): Three times per day as a standard action, affect up to 10 creatures within 60 ft.; Will DC 27.

Infernal Scepter (Weapon): This +3 keen flaming heavy mace deals additional 1d6 fire damage.

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Ecology

Environment Lower Planes (second layer of Hell)
Organization solitary (with 1–4 fiendish camels and 2–4 bebal or abalam)
Treasure standard

Description Paimon is a towering figure draped in onyx silk, crowned with runed steel set with garnets. His voice resonates with arcane knowledge, and each word is imbued with binding power. He rides a fiendish camel, its breath scorching the earth, and is flanked by scribes that record every secret uttered.

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Fiendish Camel
NE Large Magical Beast
AC 19, touch 10, flat-footed 17 (+2 Dex, +9 natural)
hp 85 (9d10+30)
Fort +7, Ref +4, Will +2
Speed 50 ft.
Melee gore +14 (2d6+8 plus 1d6 fire)
Space/Reach 10 ft./5 ft.
Str 22, Dex 14, Con 22, Int 2, Wis 12, Cha 6
Skills Perception +10
Feats Power Attack
Special Abilities Fiendish Charge (as charge with fire damage, DC 17 Fort), fiendish stamina (fast healing 2)

Paimon’s mount, a demonic dromedary whose roar can shatter stones and whose hooves sear the ground.