I haven't encountered Cyberus yet but they do sound unfair already...
With Skinless, if you are bitten, you still have a chance of survival. After all, it'd be impossible for someone to continuously avoid being touched. All the 'creatures' I have seen in the map thus far have weaknesses.
Skinless can't touch water, and their bites can be healed with water.
Adrian The Hellhound can kill you after staring you in the eyes three times, but can't stand light and can be scared away with flashlights.
However, a character that touches someone else without warning and declares them dead is unfair enough, and being invincible and self-healing on top of that is worse. For a fair roleplay, the victim also needs a chance to survive, no matter how small.