Blightbane Domain (Rank 3: Exorcist)

Purifying Touch: As an action, the Exorcist can remove one of the following conditions: blinded, deafened, poisoned, or diseased. Usable 5 times per long rest.

Divine Magic: The Exorcist can cast cleric spells and uses Wisdom as its spellcasting ability (Spell save DC 17, +9 to hit with spell attacks).

Cantrips (at will): Mending Wards, Blight Fire, Guidance

1st level (4 slots): Destroy Blight, cure wounds, Sense Blight, Scourge Purification

2nd Level (3 slots): Cleansing Wave, Lesser Restoration, Amethyst Sanctuary

3rd Level (3 slots): Blightward,  Revivify, Purging Light 

4th Level (2 slots): Blight Rend, Light of Diminishment

Channel Divinity (3/Day) - Purifier of the Blighted Scourge:

1. Blighted Interference: Blighted creatures within 30 feet must succeed on a DC 17 Wisdom saving throw or be frightened of the Disciple for 1 minute. They also cannot approach within 30 feet of the Exorcist.
2. Purifier’s Blessing: When casting a healing spell, the Exorcist can grant advantage on the target’s next Wisdom or Constitution saving throw against the Blighted Scourge and restore additional hit points equal to 2 + the spell’s level.

Blessed Amethyst Mace (Common): Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) bludgeoning damage. If you hit a creature, it has disadvantage on its next attack roll before the start of your next turn (Sap property).

The Exorcist can take 1 legendary action, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The Exorcist regains spent legendary actions at the start of their turn.

Blightbane Smite (Costs 1 Action)
The Exorcist deals an additional 3d8 radiant damage on their next weapon attack.

Healing Burst (Costs 1 Action)
The Exorcist heals an ally within 30 feet for 2d6 hit points.