An interesting character, my only concern is that the only reason presented for his apparent unstoppability is his intelligence. I think he needs a few more clubs in the bag to be able to kill that many people with impunity. Did he get mystical training ala The Shadow? Sell his soul? Find a mystical book of encantations? :) Go to Comment
Inside a mad scientists laboratory the PCs find a short creature with smooth, oily and whale like skin. The head is faceless and smooth also. But hundreds of white eyes on the PCs from the fat belly of this creature. The PCs are about to kill it as it speaks to them in a feeble but intelligent voice, asking them to pour the contents of a green vial on it. Will they do so? And if so, what will happen?