Cover of Darkness (Nullimancy Magic)

Waves of darkness enclose your body until the spell ends, causing you to become heavily obscured to others. The shadows turn dim light within 10 feet of you into darkness, and bright light in the same area to dim light.
Until the spell ends, you have resistance to radiant damage and immunity to psychic damage. In addition, whenever a creature within 10 feet of you hits you with an attack, the darkness consumes the attacker, dealing it 2d8 force damage.