User blog comment:Varzan Deodinm Beldinm/Most Powerful Semblance?/@comment-11188061-20150109020626

That's easy (not).

If we're judging by resillience, it will be immortality (in a sense). The ability to absolutely not die no matter what the circumstances, or to render death mute (for human race, it will be our ability to procreate).

If we're judging by destruction, then the Mystic Eyes of Death Perception sums everything up nicely.