Valeska's Static Vortex

A huge school of crackling piranhas swims rapidly through the air in the area you indicate. These magic fish are made of electricity and tear into the bodies of creatures as though ravenous.  

This spell creates a cylinder with a 40’ Radius 20’ tall with a 5’ radius “safe zone” in the center.  The spell lasts for 1 round per caster level. Creatures in the area take 3d8 points of lightning damage per round at the beginning of  your turn.

At Higher Levels. When you cast this spell using a spell slot of  5 or higher the damage increases by 1d8 for each spell slot above 4th.