Homebrew
Investigation +6, Stealth +8
Darkvision 60 ft., Passive Perception 11
Bound to the Pit. As long as the Dead of Kirinal are in the Pit, Ghost Boy can't be permanently slain. If he is reduced to 0 hit points, he re-forms 24 hours later somewhere randomly in the Kirinal Concordance Zone with all his hit points.
If he is taken outside the Outer Ring of the Zone, Ghost Boy disappears and instantly reappears somewhere randomly in the Zone.
Ethereal Sight. Ghost Boy can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa.
Incorporeal Movement. Ghost Boy can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.
Unusual Nature. Ghost Boy doesn’t require air, food, drink, or sleep.
Multiattack. Ghost Boy makes two Tickling Touch attacks.
Tickling Touch. Melee Spell Attack: +6 to hit, reach 5 ft., one creature. Hit: 21 (4d8 + 3) psychic damage.
Etherealness. Ghost Boy enters the Ethereal Plane from the Material Plane, or vice versa. He is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet he can't affect or be affected by anything on the other plane.
Horrifying Visage. Each non-undead creature within 60 feet of Ghost Boy that can see him must succeed on a DC 13 Wisdom saving throw or be frightened for 1 minute. If the save fails by 5 or more, the target also ages 1d4 × 10 years. A frightened target can repeat the saving throw at the end of each of its turns, ending the frightened condition on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to this ghost's Horrifying Visage for the next 24 hours. The aging effect can be reversed with a greater restoration spell, but only within 24 hours of it occurring.
Possession (Recharge 6). One humanoid that Ghost Boy can see within 5 feet of him must succeed on a DC 13 Charisma saving throw or be possessed by Ghost Boy; he then disappears, and the target is incapacitated and loses control of its body. Ghost Boy now controls the body but doesn't deprive the target of awareness. The ghost can't be targeted by any attack, spell, or other effect, except ones that turn undead, and it retains its alignment, Intelligence, Wisdom, Charisma, and immunity to being charmed and frightened. It otherwise uses the possessed target's statistics, but doesn't gain access to the target's knowledge, class features, or proficiencies.
The possession lasts until the body drops to 0 hit points, Ghost Boy ends it as a bonus action, or the ghost is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, the ghost reappears in an unoccupied space within 5 feet of the body. The target is immune to this ghost's Possession for 24 hours after succeeding on the saving throw or after the possession ends.
Shared Sorrow. Ghost Boy targets one creature he can see within 60 feet of itself that is missing any hit points, sharing his own torment with this pained soul. The target must succeed on a DC 14 Wisdom saving throw or be incapacitated.
A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to his Shared Sorrow for the next 24 hours.
The Ghost Boy of Kirinal was an orphan who died along with half a million other mortals in the Disintegration of Kirinal. He has been haunting the area around the Kirinal Pit since then and is unique among the "Dead of Kirinal" for his ability to leave the Pit itself.
He seeks out people with interesting occupations and joins their adventures whether they want him to or not.