Board Thread:Off Topic/@comment-26397825-20160116042403/@comment-25396609-20160207041010

Summoning an avatar of death (even ifi ti s am ere fascimile) feels very much like a sue ability to me. And the psychological implications required to develop such a semblance are (no pun intended) grim at best.

Keep in mind that in most cases the semblance is somehow related to the personality; so  such a specific power would need a reason to initially manifest.