dark magic: dark lightless slash

your weapon (dagger, sword, and wand.) is enveloped in darkness and when swinging releases a slash made from darkness. Depending on your level (increases by every 2 levels)the distance grows by 2 ft. the damage by 1 and the amount of slash's it creates by 1. The attack works well against holy and holy based celestial beings and is does less damage to dark and dark based celestial beings. This spell is the evolution of dark magic: dark lightless blade