Okay. It's been a while but I have some thoughts on this now.
Predictably, my concerns are mostly toward her modifications. One, why does she have them in the first place? I tentatively assume her Makuta made them to replace her missing limbs, but why would he do that? If it was a punishment, it seems like a pretty bizarre one. Second, in continually powering this drill to remain upright, I would expect her to tire rapidly - how does she cope with this? Last, each arm can split once into two for an overall maximum of four, correct? (This seems likely, but it's a little bit ambiguous and I want to be sure.)
Aside than that, I think Torment looks good.
It seems that I'll have to go back and add more within the profile itself, but I'll try to clarify this as best as I can.
As stated back in Misery's Bio, their Makuta was essentially obsessed with turning his Rahkshi into the perfect killing machines, and as such, letting one of his offspring waste away without a means to defend themselves or carry out his orders would be simply unacceptable. The additional modifications were originally intended to be less of a punishment for her causing the deaths of her other siblings, since he's still technically in the dark about that, and more along the lines of a very cruel joke at her expense (hence the lack of Flight Mode), mostly due to her superiority complex and her overall jealousy of everyone who is currently surpassed her. So basically, it's sort of a "If you were so good to begin with, then why did I have to fix you in the first place, let alone modify your suit to make you better?" type of situation.
Concerning the drill, by "control its rotation via mental command," I really only ever intended for her to be able to manipulate the speed in which it was moving, and whether or not it was actually moving at all. Otherwise, it's set up so that it spins automatically and independently from the rest of her suit once on, so the only real issue she'd have to contend with is maintaining her balance in order to move and remain upright. I'm also assuming that it would also have some sort of miniature recharging device within the interior so that its power source automatically starts to replenish itself whenever she enters a state of rest, but if that's too much, just let me know.
And yeah, she essentially starts off with two rather bulky arms that can split apart and become four normal ones.