Beam of Darkness

 This Spell is a powerful one but leaves you vulnerable, you Chanel your negitive feeling to make a beam of darkness  to aid you in battle by taking the energy out of your opponents plus wounding them. Cast at third level, this spell deals 2d10 force damage, dealing 1d10 extra damage per level upcast. A creature hit by this spell must make a Constitution saving throw, taking one level of exhaustion on a failed save. Treat this level of exhaustion as normal.