it could be possible that trolls have a much better pain tolerance (when vriska 8 ball exploded) since their species is pretty much based around getting your ass beat when aradia in (make her pay) beat vriska up so much to the point of dying shows that it takes a lot to kill a troll(?? maybe?)

Pain tolerance is a thing, but the other ask had a point in that you can’t just smack a robot limb onto a wound and be done with it, you need to do some healing. Unless you’re a Cherub apparently. In which case just fucking stab the fucking robot leg into your stump.