My characters are usually powerful, but they can be defeated by smart thinking. Allow me to spoil Wiper's power to illustrate why you're screwed when fighting Wiper. Wiper is able to transport non-living matter through teleportation. Usually, Wiper attacks by moving large blocks of stone above someone's head, portalling itself around and hitting you, or portalling in weapons. Now, while Wiper is living matter, it can transport itself because it's it's own body, and it can transport other living beings it touches, but always as a whole, never only partially. This is stopped by the Soul, which runs interference on Wiper's power, and thus Wiper can't simply portal all of the dead skin cells off of you, flaying you instantly. However, as you are a robot, you can be transported away at will. Wiper is already fairly dangerous, but without the protection of a Soul? While you're completely and absolutely immune to Kami (she can, at worst, throw pebbles at you), Wiper is your achilles heel.