You create a 10ft radius sphere of unstable arcane energy at a point you see in range, lasting for the duration. The sphere sheds dim light in a 10ft radius. Any creature in that dim light has disadvantage on concentration checks.
Creatures in the area when it's created make a Constitution save. A creature takes 3d6 force damage on a failure or half as much on a success. If this damage forces someone to take a concentration check, you add your SAM to the DC.
As a bonus action, you can cause the sphere to disappear and then reappear at a different point within 30ft, forcing the creature in the new area to make the save against the sphere's damage. A creature can only be affected by the sphere once per turn.
At Higher Levels. The damage increases by 1d6 for each slot above 3rd.
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