Child Of Purgatory (Revised)

As a Child of Purgatory, you are both good and evil, death, and healing. You are the master of healing and damage. When a normal Cleric can only heal damage, you can also deal damage to your enemies. But it isn't free, as the damage will act not only be a benefit but a curse. Although you are meant to heal, your God does not wish for you to help those who are beyond the mortal plane. And doing so will often result in angering him. (Note the God of Purgatory you use is up to either you or the DM you are playing with

 

Purgatory's Disciple

When you choose this domain at 1st level, you gain proficiency with maces and daggers

Child of Good and Evil

Also starting at 1st level, you gain the ability to cast Detect Good and Evil as a cantrip. 

Channel Divinity: Preserve Life and Create Death

Starting at 2nd level, you can use your Channel Divinity to heal the badly injured and bring people closer to 

As an action, you present your holy symbol and evoke healing energy that can restore a number of hit points equal to five times your cleric level. Choose any creatures within 30 feet of you, and divide those hit points among them. This feature can restore a creature to no more than half of its hit point maximum. You can’t use this feature on an undead or a construct. You can also use Create Death to deal 2d8 HP which will be divided among any creatures/undead within 30ft. Because of your patron God, this spells damage will be doubled against all undead creatures.

Blessed Healer and Cursed Damager

Beginning at 6th level, the healing spells you cast on others heal you as well. When you cast a spell of 1st level or higher that restores hit points to a creature other than you, you regain hit points equal to 2 + the spell’s level. When you cast a spell to attack you can increase the spell's damage by 4 but at the cost of dealing 2 damage to yourself. Damage dealt to self increases by 2 for every spell slot higher than one. Added damage from casting the spell increases by 2 for every spell slot higher than one and when you cast the spell you only take the damage intuitive to the base level of the spell. Aie, casting Burning Hands using a level 2 spell slot will deal +6 damage, and cause you to take only 2 damage. The damage dealt and added is scaled by two for levels 1-4, three for levels 5-9, 4 for levels 10-17, and 5 for levels 18-20.

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.

Supreme Healing and Death

Starting at 17th level, when you would normally roll one or more dice to restore hit points with a spell, you instead use the highest number possible for each die. For example, instead of restoring 2d6 hit points to a creature, you restore 12. When you would normally roll damage for an attack you instead take the highest possible number for each die. For example, instead of dealing 2d6 damage to a creature, you deal 12 damage.