OK... so, there's a Deathlock Mastermind. He is standing before a portal that dumps massive amounts of necrotic energy into the landing he's standing on every hour. That necrotic energy heals him, even bring him back to his un-dead state. What happens if his head is cut off and removed from the landing? His body, minus head, is still there and still being washed with necrotic energy.
I'd say it depends on the DM, as such things usually do. Information about said portal, or said energy, or some context in general, might be able to help, but it sounds like a very specific situation that the DM knows much more about than any of us. Unless you're the DM, and are looking for suggestions. :p
A few thoughts:
Raw necrotic energy would usually be entropic - accelerate rot and decay. So it would usually decompose a body in a hurry when the creature actually died.
If it's a more shaped Necromantic effect, those have their rules. Usually, such effects that can keep a unique creature in an undead state require a relatively intact body to function, so a headless creature would likely not reanimate.
Alternatively, some generic Necromantic effects might just do what they can with what they have, and raise the headless Deathlock Mastermind as a headless zombie instead, or something.
OK... so, there's a Deathlock Mastermind. He is standing before a portal that dumps massive amounts of necrotic energy into the landing he's standing on every hour. That necrotic energy heals him, even bring him back to his un-dead state. What happens if his head is cut off and removed from the landing? His body, minus head, is still there and still being washed with necrotic energy.
Does nothing happen?
I'd say it depends on the DM, as such things usually do. Information about said portal, or said energy, or some context in general, might be able to help, but it sounds like a very specific situation that the DM knows much more about than any of us. Unless you're the DM, and are looking for suggestions. :p
A few thoughts:
Raw necrotic energy would usually be entropic - accelerate rot and decay. So it would usually decompose a body in a hurry when the creature actually died.
If it's a more shaped Necromantic effect, those have their rules. Usually, such effects that can keep a unique creature in an undead state require a relatively intact body to function, so a headless creature would likely not reanimate.
Alternatively, some generic Necromantic effects might just do what they can with what they have, and raise the headless Deathlock Mastermind as a headless zombie instead, or something.