Herald of Darkness

You become the living shadow of your dark patron, your form wreathed in umbral power and immune to the light’s blessings. As the Herald of Darkness, you stride into battle under night’s cloak, your foes trembling before your dominion over shadow and void.

• Cloak of Endless Night: While in Darkness, any enemies within 20 feet of you take 3d6 psychic damage at the start of their turns. You heal the same amount of damage they take. 
• Umbral Shield: You gain resistance to radiant damage.
• Eyes of Night: While in The Dark, you have truesight for 40 ft.
• Shadowy Rebuke: When a creature hits you with a melee attack, you can use your reaction to deal necrotic damage equal to half the damage you just took.