>>712896998
It's based off of the Leviathan's description from the Bible.
Primarily from the description in Hebrew texts, the book of Job, and the Beast from the Book of Revelation, which is described as looking like the Leviathan, but more serpent-like and with 6 heads. I mean, in the book of Isaiah the Leviathan is described as "the dragon of the sea".
That's also why it's the deepest leviathan (naturally) and why it avoids human contact. And why there's so few of them.
It is still kinda goofy though, I can't explain away some of the goofiness.