Doom Domain
Gods with the Doom domain in their portfolios promote fear, judgment, punishment, and the end of all things. Priesthoods of such gods consider themselves the messengers of that doom, and they work to spread word of the coming end. Their gloomy, often frightening message makes them unwelcome in many, but not all, civilized places.
Herald of the Apocalypse
When you choose this domain at 1st level, you learn the vicious mockery cantrip. You also gain proficiency in the Arcana or Intimidation skill (your choice).
Channel Divinity: Damnation
Starting at 2nd level, you can use your Channel Divinity to lash out at those who defy your deity’s messenger. As an action, you present your holy symbol while pronouncing doom to unbelievers. Each hostile creature that can see you and that is within 30 feet of you must make a Wisdom saving throw, taking necrotic damage equal to 3d6 + your cleric level on a failed save, or half as much damage on a successful one. A creature that has total cover from you is not affected.
Weight of Guilt
At 6th level, your connection to the end of all things gives you greater understanding of the minds of others not enlightened by your deity. As an action, choose one creature that you can see within 60 feet of you. That creature must make a Wisdom saving throw. On a failed save, you automatically know for the next 10 minutes whether anything the target says is true, a lie, or in between. When the effect ends, or if the target succeeds on the saving throw, the target can’t be affected by this feature again until you finish a long rest.
Divine Strike
At 8th level, you gain the ability to infuse your weapon strikes with necrotic 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 necrotic damage to the target. When you reach 14th level, the extra damage increases to 2d8.
Herald of the Apocalypse
At 17th level, you gain resistance to acid, fire, and poison damage.