Decease Kill

Descease Kill (Disease Kill) is an attack used by Sailor Saturn, though it will kill her.

Used
First, in the first frame, Hotaru Tomoe is seen with her head pointed upwards and a white cloak around her, then in the next, Sailor Saturn is seen, shadowy with a violet to purple arora around her as the words Descease Kill are heard, though it is unknown if she actually says it or if it is telepacific.

Trivia

 * Despite it saying Descease Kill, it has been confirmed to be pronounced as Discease Kill instead.