>>76785 Calamity Gannon is the Demiurge. He is imperfect, and incomplete. Calamity Gannon is forced to fight Link in an unfinished state, a reference to the Demiurge's unfinished creation. Calamity Gannon is said to be comprised of pure malice.
Evil always comes back, and takes over for a time. Hyrule's history displays a balance of good, and evil.
Princess Zelda seals Gannon away like Solomon sealed away demons. Demons are sealed in various items throughout the series.
"The source of the darkness that has appeared time and again throughout Hyrule's history. It's been called many names, from "Great King of Evil" to "Calamity." Hibernating within a cocoon, it attempted to regenerate a physical form after Link awoke but was forced to confront him in an incomplete state." — Hyrule Compendium
Calamity Ganon is the main antagonist and penultimate boss of The Legend of Zelda: Breath of the Wild. He is the last Scourge, found at Hyrule Castle. He is an incomplete form that Ganon assumed when he was interrupted while trying to reincarnate himself.
>During the climactic final battle against Link, Calamity Ganon appears savage and almost mindless, which is heavily implied to be the result of his attempted resurrection being botched.
