Midnight Domain

At the darkest hour of night the pinnacle of their power shows in the absence of light...

Expanded spell list
Level 1: Disguise Self, Dissonant Whispers
Level 2: Shadow Blade, Darkness
Level 3: Hunger of Hadar, Blinding Smite
Level 4: Shadow of Moil, Evards Black Tentacles
Level 5: Reincarnate, Dream

Blinded by the Night

When you choose this domain at 1st level, your eyes become blessed by your god allowing you to see full colour in darkness and the ability to so see through magical darkness.

You gain darkvision out to a range of 60 feet. If you already have darkvision from your race, its range increases by 45 feet.

You also gain the following spells which count as cleric spells for you and are always prepared.
Expanded spell list
Level 1: Disguise Self, Dissonant Whispers
Level 2: Shadow Blade, Darkness
Level 3: Hunger of Hadar, Blinding Smite
Level 4: Shadow of Moil, Evards Black Tentacles
Level 5: Reincarnate, Dream

Kiss of Night

Also starting at 1st level, while in darkness you gain a bonus to your walking speed equal to your proficiency bonus times 5.

When an Ally creature you can see rolls initiative you can grant them a blessing of your god granting them either a +2 to Armor Class or Saving Throws (your choice) for 1 min, they also gain a 15' bonus to their walking speed until the end of the first round of combat. You may use this feature once per combat encounter.

Channel Divinity: Inversion of Light

Starting at 2nd level, you can use your Channel Divinity use the darkness to your advantage.
While in darkness you can spend your Reaction to give Disadvantage to a creature that you can see making an attack if the creature misses the attack roll you may heal the target of the attack for (your Proficiency Bonus times your Wisdom Modifier.)

Darkness in the Light

Beginning at 6th level, when a creature you can see passes a saving throw from a spell you cast, that creature takes Necrotic damage equal to your Proficiency Bonus + your Wisdom Modifier. You may use this feature a number of times equal to you Wisdom Modifier, per Long Rest.

Divine Strike

At 8th level, you gain the ability to infuse your weapon strikes with divine energy. Once on each of your turns when you hit a creature with a weapon attack, you can cause the attack to deal an extra 1d8 radiant damage to the target. When you reach 14th level, the extra damage increases to 2d8.

Cloak of Midnight

Starting at 17th level, while in Darkness you gain the Invisible Condition and a Fly Speed equal to you Walking Speed. Once per day you may receive the blessing of your god gaining a sphere of divine darkness emanating from you 30 feet in each direction which cannot be dispelled for 1min after activating. This Sphere of Darkness lasts for 1 Hr or until dispelled as Free Action by the User.