Black Lore of Moil

Flame-like shadows wreath your body until the spell ends, causing you to become heavily obscured to others.  The shadows turn dim light within 30ft of you into darkness, and bright light in the same area to dim light. Until the spell ends, you have resistance to radiant damage. Also, you automatically succeed saves against necromancy spells, and other creatures within 120ft of you have disadvantage on saves against necromancy spells.