Cursed Pulse

A creature uses its knowledge of dark magic and builds it up inside them before releasing it in a 10ft sphere around them. Each Creature within that range must make a Con save of their spell dc. on a failure the target takes 2d6 necrotic damage and becomes cursed for 1 round taking an extra 1d6 necrotic damage on the first weapon attack made to it, on a success the target takes half damage and isn't cursed. A creature that is cursed can get rid of the curse with the remove curse spell