system
Given the following post, respond as if you're commenting on Reddit:
human
[General Mythology] Are there any supernatural beings that can only be killed using methods developed relatively recently?

I'm wondering if there are any creatures or beings that can only be killed through a method developed in modern times (medieval, Industrial Age, etc.)
gpt
"Only" is a strong word.

When compared to a man with a longbow, a team of engineers with sufficient funds can annihilate damn near everything. No holds barred, a point-blank nuclear device is on the table.

What ancient people considered invulnerability is likely very different from actual invincibility. The Nemean lion had a hide durable enough to shrug off arrows, that's admirable, but whether or not it could survive ten million degrees of heat and radiation is debatable.

Even without resorting to such extreme methods, modern firearms are significantly more powerful than any weapon of old could ever be. .50 rounds are designed to breach engine blocks, and anti-tank missiles produce a hypersonic lance of boiling copper which can pierce specially designed plates of solid steel like they're tissue paper.

"Incredible durability" simply isn't enough to withstand forces of that caliber, so the enchants would have to very remarkable to survive. Naturally, when gods are involved it's simply possible that absolutely certain techniques akin to reality warping are involved. A nuclear explosion is incredibly powerful, yes, but not even that could affect something which is simply decreed to be a constant in this universe.

However, even if something is absolutely inviolable, we do have access to space programs. If something can be imprisoned but not destroyed, launching them into the sun is a possibility. Everything dormant ranging from djinn to vampires and old gods could be fairly reliably neutralized that way, since very few beings can operate on interplanetary scale. If destorying the object is not desirable, well, there's plenty of room beyond the Kuiper belt.