Oath of Evil

As a paladin you usual protect goodness and smite evil ,but as a evil paladin you sold your soul to a devil and now corrupt good and spread evil.

The oath requires you to

• Spread evil and suffering 
• Turn goodness into evil
• Do nothing about injustice 
• Grow the seeds of evil in a person

Channel Divinity

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

Sacred Weapon. As an action, you can imbue one weapon that you are holding with dark energy, using your Channel Divinity. For 1 minute, you add your Charisma modifier to attack rolls made with that weapon (with a minimum bonus of +1). The weapon also absorbs all light in a 20-foot radius. If the weapon is not already magical, it becomes magical for the duration.

You can end this effect on your turn as part of any other action. If you are no longer holding or carrying this weapon, or if you fall unconscious, this effect ends.

Turn the Holy. As an action, you present your demonic symbol and speak a prayer censuring celestial, using your Channel Divinity. Each celestial that can see or hear you within 30 feet of you must make a Wisdom saving throw. If the creature fails its saving throw, it is turned for 1 minute or until it takes damage.

A turned creature must spend its turns trying to move as far away from you as it can, and it can’t willingly move to a space within 30 feet of you. It also can’t take reactions. For its action, it can use only the Dash action or try to escape from an effect that prevents it from moving. If there’s nowhere to move, the creature can use the Dodge action.

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of Devotion Spells

Aura of Evil

Starting at 7th level, any none fiend creatures within 30 feet of you must make a DC 13 Wisdom saving throw, if they fail 3 times, they become evil.

At 18th level, the range of this aura increases to 40 feet.

Horror of Spirit

Beginning at 15th level, you are always under the effects of a protection from evil and good spell.

Blood Sacrifice

At 20th level, as an ritual, you can sacrifice one unwilling good creature to get a spell from any level and from any class as a cantrip for 3 days. The ritual last 1 minute.