I think this would be a good name for a shadow weapon. it would be a short sword, and it's charge attack would be a blast around the character similar to the Fang Of Vog (like the ring of fire, I guess). It's attacks would be up to 3 burst attacks a swipe to the left, then a diagonal cut down to the right and then a finishing stab to the centre or a swing from above the players head that can deal shock damage. also, the bottom edge of the blade would HAVE to be glowing purple or red.