This creature monster has a long skeletal body topped with a fanged human skull. Its eyes glow with a hellish red light.
The necrophidius opens combat with its dance of death ability; entranced victims are bitten and paralyzed. Paralyzed victims are either slain by the necrophidius or left to their own accord (depending on the exact instructions given to the necrophidius by its creator).
A necrophidius can entrance opponents by swaying back and forth. Those within 30 feet viewing the dancing snake must succeed on a DC 12 Will save or be dazed for 2d4 rounds. This is a mind-affecting effect. The save DC is Charisma-based.