Spirit Oni

Tiny aberration, neutral evil

Armor Class 15 (natural armor)
Hit Points 10 (3d4 + 3)
Speed 10 ft., fly 30 ft.

6 (-2) 19 (+4) 12 (+1) 13 (+1) 12 (+1) 15 (+2)

Skills Deception +6, Stealth +8
Damage Resistances acid, cold, fire, lightning, thunder; bludgeoning, piercing, and slashing from nonmagical weapons that aren’t silvered
Damage Immunities necrotic, poison
Condition Immunities charmed, exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained
Senses darkvision 60 ft., passive Perception 11
Languages Abyssal, Common, Giant
Challenge 2 (450 XP)

Special Traits

  • Innate Spellcasting. The spirit oni’s innate spellcasting ability is Charisma (spell save DC 12, +4 to hit with spell attacks). It can innately cast the following spells, requiring no material components:
  • Mask Symbiosis. A willing Small or Medium creature can wear the spirit oni as a mask. While wearing the mask, the creature sees through the spirit oni’s eyes and speaks through its mouth, and has advantage on Wisdom (Insight) checks. The spirit oni cannot act independently while being worn as a mask.


  • Multiattack. The spirit oni makes two attacks: one with its bite and one with its gore.
  • Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 6 (1d4 + 4) piercing damage.
  • Gore. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 7 (1d6 + 4) piercing damage and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 hour.
Section 15: Copyright Notice

Rappan Athuk © 2018, Frog God Games, LLC; Authors Bill Webb, Clark Peterson, Skeeter Green, Tom Knauss, Lance Hawvermale, WDB Kenower, Casey Christofferson, and Greg Raglund; based on the original creation of Bill Webb.