User blog comment:Varzan Deodinm Beldinm/Most Powerful Semblance?/@comment-25975257-20150109004133/@comment-25555436-20150109004802

...Eh, you didn't exactly get it right? It's not injuring your soul, it's nullifying your ability to manifest it as Aura and Semblance. Got it memorized?

If it "injured a soul", then given how he described this Semblance, it would be a 1-hit-kill, yet as he made clear a few comments down, it's not injuring a soul, it's just preventing one from using Aura and Semblance.