Path of the holy berserker

This class is a barbarian 1/3 caster that takes spells from the cleric list. 

Holy Spellcasting

Starting at 3rd level you can prepare spells from the cleric list. You have spell slots in accordance with the other 1/3 casters. When you rage you can cast and concentrate on spells from this subclass. Taking damage while raging does not cause you to have to make concentration checks on these spells however ending rage automatically breaks concentration. 

Wrathful Casting

Starting at 6th level when you activate rage you can cast a first level spell from this class as part of the same bonus action you used for rage, it doesn't cost a spell slot but does use concentration if the spell requires it. 

Holy Touch

Starting at 10th level you can use an action to touch creature and preform a dc 15 religion check to cure any disease or charm affecting them. If you fail you can expend a use of rage to make the check automatically succeed. 

Holy Retaliation

Starting at 14th level when a creature within 30 feet of you takes damage from an attack or spell you can use your reaction to cast a spell of 3rd level or lower on the creature who took damage or the creature who caused that damage with an attack or spell.