Spellcasting. 5th-level cleric. Its spellcasting ability is Wisdom (spell save DC 13, to hit with spell attacks +5)   Cantrips (at will): Spare the Dying, Druidcraft, Guidance, Produce Flame,   1st level (4 slots): Purify Food and Drink, Detect Magic, False Life, Cure Wounds,   2nd level (3 slots): Pass without Trace, Prayer of Healing, Aid, Spiritual Weapon,   3rd level (2 slots): Bestow Curse,  

Potion of Healing: The healer carries a potion of healing (2d4+2 healing as a action) and a Healer's Kit.   Chosen of Gods: Once per week, as an act of incredible courage the acolyte can sacrifice himself to protect other. The DM can roll a d20 and add acolyte CR to this roll. If the check gets 20 or more the acolyte can receive one of the random bonuses: Regain one spell slot of his greater slot available; Maximize the healing of a spell, grant one target resitance/advantage against the next damage/saving throw.