Corpse Puppet (Alive)

 Abhorrent Nature. The corpse puppet does not need to eat, sleep, breathe, or drink and does not age. The puppet is treated as a living Humanoid rather than Undead by spells and other magical effects, unless the creature is aware of the puppet's true nature. In which case, they can choose which creature type to treat it as. Divination spells used to determine if the original host is alive detect them as a living humanoid, even if the caster believes otherwise.

False Appearance. Unless a creature interacts with the puppet for more than 1 minute, it is indistinguishable from a living humanoid.

Trapped Psyche. Any attempt to psychically interact with the puppet results in communicating with the trapped brain of the body's original owner. They are fully aware of everything that has occurred, although can exert no control over their former body. If the puppet takes psychic damage, it's Intelligence, Wisdom, and Charisma scores are halved until the end of it's next turn, as it is unable to draw upon the living brain inside of it.

Immutable Form. The puppet is immune to any spell or effect that would alter its form.

Necrotic Absorption. Whenever the puppet is subjected to necrotic damage, it takes no damage and instead regains a number of hit points equal to the necrotic damage dealt.

Magic Resistance. The puppet has advantage on saving throws against spells and other magical effects.

Magic Weapons. The puppet's weapon attacks are magical.

Multiattack. The puppet makes two unarmed strikes.

Unarmed Strike. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage.

Pneumatic Blade. Ranged Weapon Attack: +7 to hit, reach 30 ft., one target. Hit: 14 (4d4 + 4) slashing damage.

Exploit Brain. The puppet searches through any relevant information the prior host's brain may possess, such as memories when alive in order to perfectly pretend to be the host or benefit from their skills and proficiencies. The puppet gains proficiency (+3) in any one skill or tool the host would have that the puppet lacks, lasting until the puppet uses this action to learn a new proficiency.

Detect. The puppet makes a perception check.

Reveal Horror. The puppet dramatically unfurls itself, exposing it's true horrific nature to all who can see it. All creatures who see this must make a DC: 14 Wisdom save. On a failure, the creature is Frightened. If a creature fails by 5 or more they are additionally stunned until the end of their next turn. A creature who succeeds on the save is immune to this for 24 hours. The puppet's creator, as well as any creature unable to comprehend the puppet's true nature, automatically succeed.