well they could have that stuff i guess.
Well, yeah, it figures.
Plus, Caster would use her magic to ensure the prisoner suffers as much as possible. Additionally, because Caster and Rider are sadists, they would gain sexual pleasure from torture (which is why Caster took the job, mainly), and would force the prisoner to perform degrading sex acts.
In Sakura's case, I had the idea that she'd be brought to the dungeon fully clothed, and that Rider would then force her to perform a strip-tease whilst taunting her about all the horrible things she was going to do to her, and also telling Sakura how horribly she herself had suffered as a result of Sakura's frame-up.
I also thought that Rider might taunt Sakura about how, instead of killing her, she was going to keep her as a sex slave once she was bored of torturing her, and how much she likes the thought of having a girl who she can do anything she likes to, but that she wouldn't usually be willing to treat a person in that way.
I do wonder how it should end, with regards to Sakura and particularly her relationship with Rider. I think she would forgive Rider for what she did, because Sakura had
admitted betraying her and getting her tortured, but I don't think Rider would forgive
herself, particularly once she knew that Sakura was the one who had got her freed in the first place. I don't think we can really just leave it there, but I'm not sure where to take it.
I also wonder how Rider would get the full details out of Sakura. The initial confession that she wasn't responsible would come as the result of heavy torture, but once she's got that she'll be a lot more reluctant to hurt Sakura. At the same time, though, she would know Sakura was covering up for someone (probably Shinji or Zouken) and would want the full truth from her, not to mention that she needs something more than someone saying "it wasn't me" to convince Nero to even
investigate it. So, it's possible that, to put pressure on Sakura, she'd be forced to threaten her with more torture (which Sakura would definitely
not want), or just point out that, if she doesn't tell the full truth, Nero will probably order her torture to be continued.