Tainted Blood Rain

Within a 60ft area Dark Clouds form in the sky and begin to rain blood. All Creatures within this area must make a Con save and take 5D8 Poison Damage on a failed save half a much on a pass, also all creature who failed their saving throw suffer from the poisoned status effect for 1 hour. When cast at higher levels Deals 1D8 extra Poison Damage per level. 1 minute concentration. Start of each round creatures take damage. You are immune to this damage.