I’m often unseen, but will always appear given enough time. I end things. What am I?

[text] IM OFTEN UNSEEN BUT WILL ALWAYS APPEAR GIVEN ENOUGH TIME. END THINGS. LN ey g LN el oN AM DEATH INCARNATE. WHEN I APPEAR ALL ENDS. ALL TREMBLE BEFORE ME EVENTUALLY. WHAT AM 17 REPORT DEATH SCHEDULED INCIDENT D REPORT DEATH SCHEDULED INCIDENT consoliacomic.com