Cleric: Demonic Cult
Fell warriors whose qi is like a hungry flame. Demonic cults practice heretical arts, feeding their magic with the lifeforce of others. They are not tolerated in civilized lands, but can be found in the outskirts and criminal underworlds of most cities.
Demon Domain Spells
Cleric Level Spells 1st Burning Hands, Inflict Wounds 3rd Flaming Sphere, Magic Weapon 5th Fireball, Speak with Dead 7th Dimension Door, Wall of Fire 9th Flame Strike, Raise Dead Bonus Proficiencies
When you choose this domain at 1st level, you learn the Fire bolt cantrip.
Reap
Beginning at 1st level, when you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Wisdom modifier + your cleric level (minimum of 1).
Channel Divinity: Condemn
Starting at 2nd level, you can use your Channel Divinity as a reaction when you are damaged by a creature within 60 feet. The creature takes 1d10 fire damage for each level of your proficiency bonus.
Hellfire
Beginning at 6th level, when you cast a spell that deals fire damage, you can instead choose to deal necrotic damage.
Potent Spellcasting
Starting at 8th level, you add your Wisdom modifier to the damage you deal with any cleric cantrip.
Inner Strength
At 17th level, you gain an additional use of Channel Divinity.