Innate Spellcasting: The oni's innate
Spellcasting ability is
Charisma (spell save DC 13). The oni can innately cast the following
Spells, requiring no material components:
At will:
Darkness,
Invisibility1/day each:
Charm Person,
Cone of Cold,
Gaseous Form, sleep
Magic Weapons: The oni's weapon attacks are magical.
Regeneration: The oni regains 10
Hit Points at the start of its turn if it has at least 1 hit point.
Multiattack: The oni makes two attacks, either with its claws or its
Glaive.
Claw (Oni Form Only): Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) slashing damage.
Glaive: Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 4) slashing damage, or 9 (1d10 + 4) slashing damage in Small or Medium form.
Change Shape: The oni magically polymorphs into a Small or Medium
Humanoid, into a Large giant, or back into its true form. Other than its size, its
Statistics are the same in each form. The only
Equipment that is transformed is its
Glaive, which shrinks so that it can be wielded in
Humanoid form. If the oni dies, it reverts to its true form, and its
Glaive reverts to its normal size.