Board Thread:General Discussion/@comment-25266931-20170112165458/@comment-14138255-20170123045811

But of course she is, or at least that's the impression. There doesn't need to be a step two to oblivion, that's the end to the means. After that, she may be content to let the Grimm roam Remnant forever, and I wouldn't think they'd mind (they'd probably grow to live unnaturally long, possibly alive by the time the sun swallows the planet up). They may just lie dormant until then, becoming embedded in the land like the dragon had.

I'd imagine they're attracted to the darkness in humanity, but only because they know such creatures also have light in them, which they are trying to kill. They know that where ever there is an imperfect amount of darkness, there's the sentient creatures of light. As for why they target humans and not animals, I cannot say. Perhaps they were simply meant to be parodies of the light god's creations; not really destructive, just abhorent and terrible fakes of the light god's creations. They might have an unexplained instinct that makes them despise humans.