Flutterflesh

AC: 16

HP: 187

Speed: fly 60 ft., walk 10 ft.

STR: 11

DEX: 18

CON: 17

INT: 12

WIS: 13

CHA: 10

This mass of fused corpses resembles a butterfly with wings of skin, limbs of bone, and a head formed of several different skulls. The dark magic that formed this abomination swirls around it hungrily.
Bound by Necromancy. Flutterflesh result from a terrible necromantic ritual. Cultists gather in the name of a dark god, powerful lich, or crazed madman, and forever bind themselves body and soul into a single evil being. Flutterflesh take recently severed limbs and fuse these new pieces to themselves in accordance with some unknowable aesthetic.
Dilemma of Flesh. The most horrifying thing about a flutterflesh, however, is its devious nature. A flutterflesh offers its prey the choice to either die or lose a limb. One can always tell where a flutterflesh resides because so many of the locals are missing appendages.
Undead Nature. A flutterflesh doesn’t require air, food, drink, or sleep.