Riddle of Mysterious Ivory

Here's another riddle from yours truly! Not expecting this to last very long. But it's not what you think... Who/What am I? I have not always been here. Life was different when I did not exist. But now I am here, a silent reminder of why you fight, yes? I remember the knife; the one with the million blades. You may question my presence, but you will glean no information, especially from [i]him[/i], that charlatan. And when the long dark closes in around us, we will be the last light. [b]Hint 1:[/b] As you look out from your perch on the highest tower, I can be seen, sitting silently. [b]Hint 2:[/b] I exist as a rip. A tear in the world. By not the world. Something else has been torn asunder [b]Hint 3:[/b] Out of all the guesses, the Traveler was actually the closest [b]Winner:[/b] Nilesdrew [b]Answer:[/b] [spoiler]The Traveler's Wounds[/spoiler] [b]Don't forget to join the Destiny Riddlers if you haven't already! We are always looking for more brilliant minds[/b]