Random joke Servant idea I came across:
Chrysis of Argos, a priestess who burned down the temple of Hera in 423 BC.
She'd probably qualify as a Caster (priestess) or Assassin (for "assassinating" Hera), but I'd like to draw your attention to her potential Assassin form. You see, her general motive for burning down the temple has been mostly attributed to her own negligence for the most part. However, there's still some wriggle room there as there are several other interpretations of her motives. Some painted her as a double-agent for a rival cult, or maybe she was making some revolutionary statement about how mankind no longer need gods. Some Christian scholars even used her legend to demonstrate the powerlessness of heathen/pagan gods compared to their own. With this alone, you can characterize her as either a cunning manipulator or a proud revolutionary... but where's the fun in that?
Instead, I propose to you another interpretation of her character. She has a minor case of Innocent Monster, but she's fully aware that what she did was purely an accident, and she seems genuinely remorseful of her own negligence. However, her IM makes it so that others interpret her actions as something greater than they are, and they'd keep congratulating her for "showing the strength of mankind" and "giving Hera that well-deserved power move by burning down her temple", much to her confusion.
You can take this even further with the NP I have in mind for her, where it basically manipulates fate to create "accidental assassinations" without her knowing it (might need to devise some limitations for that). She has very low Presence Concealment, but enemies can't sense any killing intent from her cuz' even she doesn't know when, why, or how her actions could end up killing someone. Basically an Assassin who doesn't even know why she's an Assassin, and keeps pulling off strategic sabotage/assassinations by pure accident, which other people keep praising her for, while keeping her "I have absolutely no idea what I'm doing here" attitude.
If her feats alone aren't enough, you can also fuse her with a number of philosophical razors (coincidentally a fitting weapon for an Assassin) such as Occam's razor (the simplest explanation is usually the best one) and Hanlon's razor (never attribute to malice that which can be adequately explained by stupidity/ignorance) as an extension of her IM.
I might take this idea myself eventually, but I already have a pile of unfinished work that it may take a while for me to get to her. In the meantime, if anyone would like to write their own take for her first, go ahead.