Thread:WarrenWitch/@comment-4830106-20131022151322/@comment-10390252-20131118175104

Well, when they got tired in threatening the end of the world in Doctor Who, they went onto Omnicide (the end of the universe) and Metacide (the end of every possible alternate reality).

FWIW, Omnicide sounds like something a few of the dark Spirits would like to do. Something tells me that Korra is going to seriously regret the decisions that she made in teh last episode.