Radiant Heart

You are trained to hunt the fiends who invade this realm. In your training you took a vow to remove all fiends from this plane. In the past the demon hunters were a group of people sworn to destroy the fiends, and you now carry on their legacy.

Detect Fiends

starting at 3rd level, you can extend your minds reach to detect all the beings not of this plane around you. An amount of times equal to your wisdom modifier (minimum 1) you can as an action, detect all fiends within a 1 mile radius, knowing exactly where they are.

You recover all expended uses on a long rest.

Wreath of Light

Starting at 3rd level, your body can erupt into a glowing aura of light, you can decide the design of the aura. As a bonus action you can activate wreath of light, creating a 15ft aura, any fiend within this aura takes 1d4 radiant damage at the start of their turn. Once on your turn, when you make a weapon attack you can add your wreath of light damage to the attack. This aura last for 1 minute.

Starting at 11th level, your aura damage increases to 2d4.

You can use this feature once per long rest.

Knowledge of the damned

Starting at 7th level, you have such extensive knowledge of fiends you, gain advantage on saving throws caused by fiends. In addition you have advantage on insight (wisdom) checks involving fiends.

Fight against fiends

Starting at 15th level, when you are making an attack action against a fiend type creature, you have advantage.

Rebuke the damned

Starting at 11th level, whenever a fiend within 30ft of you that you can see or hear, makes an attack role or ability check, you can (reaction) force them to make a wisdom saving throw (spell DC) or instantly fail the roll. 

You can use this feature once per long rest.