Magic Overload

This curse commonly affects ritualists who fail to cast a complex ritual. Their eyes glow with the same spell circles as the failed ritual, and their bodies begin leaking magical energy. Saving Throw DC 28 WIll Effect Each time you cast a spell of the highest rank you can cast using a spell slot, you must attempt a DC 6 flat check. On a failure, you take 1d6 mental damage per rank of the spell unless you expend a spell slot of at least one level lower than the spell cast as a free action.