Stikini (5e Creature)
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Medium humanoid (shapechanger), neutral evil
Shapechanger. The stinkini can use its action to vomit its soul and organs and polymorph into a Medium owl, or consume its soul and organs, polymorphing back into its true form, which is humanoid. Its statistics, other than its speed, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.
Flyby (Owl Form Only). The stikini doesn't provoke opportunity attacks when it flies out of an enemy's reach.
Innate Spellcasting. The stikini's innate spellcasting ability is Charisma (spell save DC 14). It can innately cast the following spells, requiring no material components:
Talons. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 13 (3d6 + 2) slashing damage.
Originally they were evil witches, who transformed themselves into owl-beings. By day they still resemble humans, but by night, they vomit up their souls (along with all their internal organs) and become undead owl-monsters that feed on hearts which they rip from sleeping humans through their mouths. If a person can find and destroy the organs of the stikini, it will die. In some communities, speaking their name is thought to put you at risk for turning into one, so Stikini stories are only told by certain medicine people. In other communities, they have been spoken of more casually as bogeymen to frighten children.