"You filthy witch! Where did you get your powers from, huh?! No Undeviginti has dominion over red sand!" to say that the human prisoner was a little bit feisty would be a vast understatement, if he was not tied up to a pillar, he would be jumping around like a rabbit fighting an eagle, it was rather impressive how much he was managing to move around at all in fact, certainly spoke to his state of mind as he was leaving rather dire abrasions over his bare body.
Naturally, he was only provided with the bare minimum, just in case he figured out how to escape, they wouldn't want to provide him with enough fabric to create a makeshift shield around one of his arms.
Ir'Houwl wasn't certain how effective that was, but she had heard that some undeads were practiced rapier skills that used a sort of cloak as a secondary weapon, and in any case, a good thickness of fabric was much better at stopping blades than one might expect.