Oath of Hellfire

The Oath of Hellfire, an oath that calls to those who crave destruction and wish to terrorize the battle field. Unlike the Conquest Oath, paladins who pick this path do not wish for glory but only seek to kill. They crush anyone who opposes them, leading to them often being called flaming devils or Hell's Knights. Those who choose this path of darkness and hatred often find themselves alone, with only the guidance of gods of Chaos, War, and Death.

Channel Divinity

When you take this oath at 3rd level, you gain the following two Channel Divinity options.

 

Abjure Enemy. As an action, you present your holy symbol and speak a prayer of denunciation, using your Channel Divinity. Choose a number of creatures equal to your paladin level + Charisma modifier within 30 feet of you that you can see. That creature must make a Wisdom saving throw, unless it is immune to being frightened. Fiends and undead have disadvantage on this saving throw.

• On a failed save, the creature is frightened for 1 minute or until it takes any damage. While frightened, the creature's speed is 0, and it can't benefit from any bonus to its speed.
• On a successful save, the creature's speed is halved for 1 minute or until the creature takes any damage.

Infernal Reply.

As an reaction, you present your holy symbol and your body turns red and hot like molten metal. For 1 minute or if your are incapacitated, all enemies that hit you with melee attack/attacks take 1d4 + Charisma modifer fire damage.

This ability scales to a 2d4 at 5th level, 2d4 at 10th level, 3d4 at 15th, and 5d4 at 20th

 

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of Devotion Spells

Aura of Tranquility

Starting at 7th level, you and friendly creatures within 10 feet of you can’t be frightened while you are conscious.

At 18th level, the range of this aura increases to 30 feet.

Forceful rising

At the cost of a channel divinity you can reanimate an amount of corpses equal to your charisma modifer within 60ft of you rise and serve you for 1 minute. The corpses immediately ignites and burns for the duration, dealing 1d6 fire damage in addition to attacks. the stats of these corpses are the same as they were in life, but it cannot be bigger than a medium in size. After the time runs out the corpse stops burning and the corpses fall

You also gain a resistance to fire damage

Beast of Hell

 

At 20th level, you can, as an action, you transform yourself into a entity of destruction for 1 minute. Your body emits a flaming light and within a 30ft radius, chosen foes take 3d10 damage at ignition. Whenever an enemy that is in the aura start their turn they take 3d6 fire damage. 

you gain immunity to fire damage and resistance to psychic and necrotic damage.

While the aura lasts, you can use a bonus action on your turn to cause flames surrounding you to grow stronger. Make a melee spell attack against the target. If the attack hits, the target takes fire damage equal to 1d10 + your Charisma modifier.

After activating the aura, you can't do so again until you finish a long rest