Black Hole

Black Hole: Summons a dark sphere of gravity that deals more damage and is harder to escape the further in you are. The sphere is 30 ft wide and the areas of damage are outer, inner, and center. The spell deals 1d4 of force damage per minute at outer, 1d6 at inner, and 1d8 at center. To escape you must make a strength check. At outer the saving throw is 5, at inner it is 10, and at center it is 15. Every 2 levels you will gain a extra die of damage for each area.