Dread Mantle

A cloak made of writhing flame-like shadows envelopes your body for the spells duration. While this spell is active you have a +1 bonus to AC, resistance to cold damage, and your melee weapon attacks deal an additional 2d4 necrotic damage. You can end the spell early by using a bonus action to dismiss it.

In addition, the cloak turns all bright light within 10 feet of you into dim light.