Story based
Since Birth, you were chosen by your god for a higher purpose, to be a sacrifice in their name. Until your call is fulfilled, they will give you the tools to propagate their name and avoid dying until the promised time.
Level 3
Mark of the Lamb.
You have a visible mark that shows that you will be a sacrifice to your god. You have advantage on skill checks related to interacting with religious creatures and creatures related with your religion.
Divine Healing.
As an action, you can use up to (STR) Hit Dice to heal yourself as if it was a Catch Breath Rest.
Aura of Reprisal.
Gain an aura with a reach 4, when an ally is attacked inside your aura, you can absorb the damage, receiving half the damage that your ally would receive.
Level 7
Tormenting Smite.
When attacking, you can sacrifice (STR) x 2 HP to duplicate the damage of your Judgement Dice.
Blessed Hands.
(STR/Safe Rest) As an action, you can use 10 points of your Lay of Hands to remove 1 Negative Condition (Check Conditions in the Core Rules, Pg 12).
Level 11
Draw Aggression.
All the enemies inside your Aura of Reprisal reach have disadvantage when attacking your allies but advantage when attacking you.
Tormenting Smite x 2.
When attacking, you can sacrifice (STR) x 3 HP to add triplicate the damage of your Judgement Dice.
Level 15
Sin Eater.
(STR/Safe Rest): You can absorb the maladies of your allies. As an action, you can absorb one Negative Condition (Check Conditions in the Core Rules, Pg 12).