Eldritch Domain.

Even the most benevolent divine beings operate outside the bounds of mortal comprehension. These eldritch forces sing a siren song that calls out for mortal worshippers through lucid dreams and the whispers of dead gods. The Eldritch domain empowers the devoted followers of unknown and distant forces of chaos, divine entities of eldritch oblivion, and dead gods.

Level 1 Features:

Eldritch Domain Spells.

Each domain has a list of spells—its domain spells—that you gain at the cleric levels noted in the domain description. Once you gain a domain spell, you always have it prepared, and it doesn't count against the number of spells you can prepare each day.
If you have a domain spell that doesn't appear on the cleric spell list, the spell is nonetheless a cleric spell for you.

Unpredictable Inspiration.

At 1st level, choose any cantrip. The chosen cantrip counts as a cleric spell for you but does not count against the number of cleric cantrips you know. Each time you finish a long rest you can replace the chosen cantrip with any other cantrip of your choice.
In addition, you gain proficiency in a skill of your choice. Each time you finish a long rest you can replace the chosen skill with another skill of your choice.

Eldritch Contagion.

Starting at 1st level, you've been gifted with the ability to impart a fleeting taste of the unknowable on others. When you cast a spell with a spell slot of 1st level or higher that targets one or more creatures, you can use a bonus action on the same turn to force one of the spell's targets to make a Wisdom saving throw. On a failure, roll on the Eldritch Effects table and the creature suffers that effect for 1 minute. At the end of each of its turns, the creature can make another Wisdom saving throw, ending the effect on a success. This effect ends early if you use this feature again.

Level 2 Feature:

Channel Divinity: Dooming Words.

Starting at 2nd level, you can use your Channel Divinity to speak a prophecy, inducing visions and hallucinations in nearby creatures.
As an action, choose a point within 120 feet of you that you can see and roll on the Eldritch Effects table. Each creature in a 15-foot-radius sphere centered on the chosen point must succeed on a Wisdom saving throw or suffer the temporary effect for 1 minute. At the end of each of its turns, an affected creature can make another Wisdom saving throw, ending the temporary effect on a success.

Level 6 Feature:

Otherworldly Calm.

Starting at 6th level, you gain resistance to psychic damage and advantage on saving throws against being charmed and frightened.
Additionally, any creature that attempts to read your thoughts find them incomprehensible. The attempt automatically fails and they must succeed on a Wisdom saving throw against your cleric spell save DC or take psychic damage equal to your cleric level.

Level 8 Feature:

Potent Spellcasting.

Starting at 8th level, you add your Intelligence, Wisdom or Charisma modifier to the damage you deal with any cleric cantrip.

Level 17 Feature:

Sing The Song of the End of the World.

Starting at 17th level, creatures who fail a saving throw against your Prophecy of Doom feature take 10d10 psychic damage. Once a creature has taken damage in this way, it can't take damage from this feature again for 10 minutes.