The idea of demonic magic toppling an emperor really depends on the lore you're diving into, but let’s break it down with some classic examples and personal musings. In a lot of fantasy settings, emperors aren’t just political figures—they’re often protected by divine right, ancient wards, or even their own latent power. Take 'The Elder Scrolls' series, for instance. Tiber Septim, who became the god Talos, was practically untouchable by conventional means, let alone demonic forces. Demonic magic might scratch the surface, but overthrowing someone like that usually requires way more than a few hellfire spells. It’s about the symbolism, too; emperors represent order, and demons embody chaos. The clash isn’t just physical—it’s cosmic.
That said, there are universes where demonic power absolutely could wreck an emperor. In 'Berserk', the Idea of Evil and the God Hand manipulate human fate on a grand scale, and no mortal ruler, no matter how mighty, stands a chance against their designs. Griffith’s transformation into Femto basically redefined the world’s power structure overnight. If we’re talking about lore where demons are primordial forces, like in 'Devil May Cry', then yeah, an emperor’s just another pawn in their game. But in stories where the emperor’s will is backed by something equally ancient—say, the Golden Path in 'Dune'—demonic magic might fizzle out against the weight of destiny. Personally, I love when lore plays with this tension; it’s never just about raw power, but whose narrative the world bends to.