Oneiroi

Laying his wings aside, [he] took Ceyx’s form and face and, deathly pale and naked, stood beside the poor wife’s bed. His beard was wet and from his sodden hair the sea-drips flowed; then leaning over her, weeping, he said: `Poor, poor Alcyone! Do you know me, your Ceyx? Am I changed in death? Look! Now you see, you recognize – ah! Not your husband but your husband’s ghost. Your prayers availed me nothing. I am dead. Feed not your heart with hope, hope false and vain.”

Ovid, Metamorphoses 11.585

The Oneiroi deal in dreams, nightmares, and the possession of sleepers. They torment those who dream, filling their minds with worry and despair. If left unchecked they will drive a sleeper to sleepwalking murder or waking suicide. In their natural form they look like attractive humans with proportional black raven’s wings and clawed hands but they are rarely seen in their true form outside of The Palace of Night. When outside of Abaddon they frequently take the form of someone close to their prey so as to drive their sorrow.

The Oneiroi are the sons of Hypnos, the god of sleep. They are personifications of dreams they were live on the shores of the Ocean in the far West, in a cavern near the border of Hades. The gods send dreams to mortals from one of two gates located there: true dreams emerged from a gate made of horn, whereas false dreams threaded their way from a gate fashioned of ivory.

The most powerful of the Oneiroi is Morpheus. His brothers Phobetor and Phantasos shape parts of dreams, while he shapes the dream in general. Morpheus shapes human figures, Phobetor shapes animal figures and Phantasos shapes inanimate objects.

Originally Posted by AKA_Bait of the Giant in the Playground Forums.
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Oneiroi
Medium outsider (Chaotic, Extraplanar, Evil)
HD	6d8+6 (33 hp)
Speed	30 ft. (6 squares), Fly 50 ft. (average)
Init	+2
AC	20 (+2 Dexterity, +8 natural), touch 12, flat-footed 18
BAB/ Grp	+6/ +6
Attack	Claw +6 melee (1d6+1)
Full-Attack	Two Claws +6 Melee (1d6+1)
Space/Reach	5 ft. / 5 ft.
Special Attacks	Spell-like abilities, dream haunting, Nox’s Entrapment
Special Qualities	outsider Subtype, Damage reduction 10/cold iron or good, Darkvision 120 ft., immunity to electricity, poison and sleep effects, resistance to acid 5, cold 5, and fire 5, Spell Resistance 18, telepathy 100 ft., tongues
Saves	Fort +6, Ref +7, Will +7
Abilities	Strength 10, Dexterity 15, Constitution 13, Intelligence 16, Wisdom 14, Charisma 26
Skills	Bluff +21, Concentration +10, Diplomacy +12, Disguise +19*, Escape Artist +10, Hide +11, Intimidate +19, Knowledge (any one) +12, Listen +19, Move Silently +12, Search +12, Spot +19,
Feats	Persuasive, Skill Focus: Bluff, Skill Focus: Disguise
Environment	The Palace of Night, Abaddon
Organization	Solitary, Troupe (2 to 4 Oneiroi)
Challenge Rating	8
Treasure	½ Standard
Alignment	Always Neutral Evil
Advancement	by character class
Favored Class	Beguiler
Level Adjustment	+6

Combat

The oneiroi avoid direct confrontation as often as possible. Their strength lies in stealth and deception. If combat is initiated they will attempt to flee as soon as possible using their etherealness, greater teleport and planeshift abilities. Oneiroi are capricious and if discovered they may, or may not, decide to return to torment their target again.

Spell Like Abilities:

At will – detect thoughts (DC 20), etherealness (self plus 50 pounds of objects only), suggestion (DC 21), greater teleport (self plus 50 pounds of objects only), planeshift (self plus 50 pounds of objects only).

Caster level 12th. The save DCs are Charisma-based.

Change Shape (Su) An oneiroi can assume the form of any Small or Medium humanoid.

Tongues (Su) An oneiroi has a permanent tongues ability (as the spell, caster level 12th).

Dream Haunting (Su) Oneiroi deliver their messages of sorrow and despair by using their etherealness ability and standing over the form of a sleeper which allows them to enter the sleepers dreams. Once in the dreams it uses its Change Shape ability to appear as someone close to the sleeper and attempts to implant a suggestion into the unconscious person’s mind for an action they must perform the next day. Sleepers remember the dream clearly and vividly the next morning.

Nyx’s Entrapment (Su) If an oneiroi enters the dreams and successfully implants a suggestion which is carried out for a week in a row on the eighth night he may attempt to possess the sleeper outright. This ability functions as a Magic Jar spell (DC 23) with the following exceptions: it is not blocked by the protection from evil spell or similar wards. The onerioi’s own body functions as the gem for the purposes of locating the victim. The orneroi knows the identity of the sleeper and may choose to enter and possess it specifically. The soul of the sleeper is not placed in the oneiroi’s body but is transported into The Black Prison of Nyx. If the body of the sleeper is slain the oneiroi returns to its own body but the soul of the sleeper is not released from the gem. The sleeper cannot be raised, resurrected, reincarnated or any similar effect until its soul is freed from the gem. A wish, miracle, or similar effect can release the soul, as can traveling to Nox itself and touching the top of gem when speaking the sleeper’s name.

Once in possession of the sleeper an oneiroi frequently uses their body to wreak horrors upon those closest to them. The oneiroi aim to drive the sleeper into a deeper despair, ending in suicide. Occasionally, if they wish to Trap the soul of their victim, they will kill the body themselves when in possession of it.

Skills Oneiroi have a +8 racial bonus on Listen and Spot checks.

*While using his change shape ability, an Oneiroi gains a +10 circumstance bonus on Disguise checks.

The Palace of Night, Abaddon

Built on a mountain stands it exists in the constant darkness on a moonless night. Its inhabitants are mainly Oneiroi but Kytons, can be found living there as well.

Mostly barren of structures, the center of the palace is taken up by The Black Prison of Nyx. Built upon its sheer black sides are the dwellings of the oneiroi and their kin. Resting at the very top, and built around it, is the dark tower of Hypnos, the Prince of the Oneiroi.