Theory rant idea thingy incoming:
The One Who Wait is really really interesting to me.
When he was first sealed, Narinder injured each of his siblings irreparably—we know this; Shamura got scalped, Heket had her throat torn, Leahy blinded and Kallamar with ripped ears. Each of them wear bandages oozing black goop which is implied to be their blood. But what about Narinder? Surely he didn't go down without a fight?
There's no way he wasn't injured too when he was sealed away—the skeletal arms and the red down the front of his robes are telling to that; well, maybe the red on his robes is a stretch, but i think it is blood. Consider the final battle against him, one of the most memorable things he does is split his face Into four and make a very good impression of an elite from halo (I'm hilarious aren't I, split-face, split-jaw, get it? Lmfao) and y'know what? The inside of his skin is red—and it makes me think maybe Narinder doesn't bleed like his siblings are.
Maybe his blood's red, unlike the black ooze his siblings have coating their wounds.
I'm not too sure what injury could cause it though; blood down his front. Perhaps a neck wound we can't see, or maybe it's a stain from when the rest of his body hidden by the cloak turned skeletal, too—I'm just theorizing.
I also think that his legs were chopped off so he couldn't escape.
Dark, I know, but think about it. When we visit him during our crusade we only ever see the upper half of his body; he never tries to stand up. He never moves around too much, and the smoke/dust rolling across tbe ground obscures everything else. Extrapolating from Aym and Ball and where the stand, estimating their height, there's no way that TOWW is standing. He could be kneeling, at best, but I think he just—doesn't have legs.
Last point before I shut up: look at his boss fight sprite—it has no legs.
He's floating, the bottom of his robes are frayed and torn, as if something had jaggedly cut through the material with a dull blade, or even a talon/claw. This is probably just a design choice by the creators but I have a headcannon and I ain't changing it xD