Anatomically Correct City-leveling monster

In many fantasy stories, dragons are portrayed as giantic monsters that can destroy cities, if not, then at least a castle.

Now, we can theoretically create something flight-capable even with masses of 250-500 kg if we're willing to abandon evolution. We can also make that creature powerful enough that they can casually defeat the greatest heroes, but they will never be able to destroy an entire city.

Since dragons have an entirely different role in my setting anyway, I think I can pass this onto something else.

Something Else

Goals:

• Eradicate all human life within a settlement that has ~15'000 people living in it. Significant property damage would be good if it's possible/affordable.

Criteria:

• Medieval cities are typically surrounded with a wall and have significant defenses. Something Else has to fight or at the very least eliminate those elements succesfully most of the time.

Note:

• Thanks to magical artifacts, humans have a way to detect and defend against nerve gas, water that turns the frogs gay, and most biological and chemical weapons.

• These magical artifacts are stuff like gas masks, some gadgets for analyzing the chemical composition of water and air, activated carbon, and a gadget that produces activated carbon.

• Somethin' Else is artificial (as in not the product of natural selection), and thus, they will be optimized for their chosen method of genocide

What design should Something Else have fulfill these criteria?

posted over 4 years ago

Mephistopheles‭

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