Oath of the Vigilante

Oath of the Vigilante is a subclass centered  around dealing with corruption and, serving justice when the law fails, and protection the innocent. 
You gain the following features:

Oath spells-Level 3
Channel Divinty:Mark of the Guilty-Level 3
Channel Divinity:Veil of the Vigilante -Level 3
Arua of the Watchful-Level 7
Unyielding Sentinel-Level 15
Avatar of Vigilance-20

Oath Spells

Your oath grants you access to special spells that reflect your role as a vigilant hunter of corruption. These spells are always prepared and don't count against the number of paladin spells you can prepare.

 

Paladin Level

Spells

3

Bane, Disguise Self

5

Pass without Trace, Silence

9

Fear, Nondetection

13

Greater Invisibility, Locate Creature

17

Hold Monster, Scrying

 

Channel Divinity:Mark of the Guilty

As a bonus action, choose one creature you can see within 60 feet of you. The creature is marked for 1 minute, until you are incapacitated, or until you use this feature again.

For the duration, you have advantage on Wisdom (Perception) and Wisdom (Insight) checks made to find, track, or discern the intentions of the marked creature.

Once on each of your turns when you hit the marked creature with a weapon attack, you can deal extra radiant damage equal to your Charisma modifier (minimum of 1).

The creature cannot benefit from being invisible against you while it is within 10 feet of you.

The mark ends early if you use this feature to mark another creature.

Channel Divinity: Veil of the Vigilante

As an action, you can use your Channel Divinity to cloak yourself in a supernatural veil for 10 minutes. The veil does not make you invisible, but it obscures your identity and dulls your presence.

For the duration, you have advantage on Dexterity (Stealth) checks. You can use a bonus action to attempt to Hide, provided you meet the normal requirements for hiding.

Nonmagical attempts to identify your face or distinctive features have disadvantage when you are obscured by the veil.

The veil ends early if you become incapacitated or dismiss it as a bonus action.

Aura of the Watchful

Beginning at 7th level, your awareness extends to those who stand beside you. You and friendly creatures within 10 feet of you gain a bonus to initiative rolls equal to your Charisma modifier (minimum of +1).

Additionally, you and friendly creatures within the aura cannot be surprised while you are conscious.

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

Unyielding Sentinel

At 15th level, you become a relentless protector who punishes those who prey upon your allies.

When a creature you can see within 30 feet of you damages an ally, you can use your reaction to move up to half your speed toward that creature without provoking opportunity attacks.

If you end this movement within reach of the creature, you can make one melee weapon attack against it as part of the same reaction.

You can use this feature a number of times equal to your Charisma modifier (minimum of once), and you regain all expended uses when you finish a long rest.

Level 20: Avatar of Vigilante

At 20th level, you can become the living embodiment of justice in the shadows, transforming into a supernatural avenger for 1 minute.

As a bonus action, you undergo this transformation, gaining the following benefits:

Eyes of Judgment. You gain truesight out to 30 feet.

Relentless Hunter. You have advantage on attack rolls against a creature marked by your Mark of the Guilty.

Punishment from the Shadows. Once on each of your turns when you hit a creature with a weapon attack, you can deal an extra 1d8 radiant damage. If that creature is marked by your Mark of the Guilty, the extra damage increases to 2d8 instead.

Unbroken Guardian. When a creature you can see within 30 feet damages an ally, you can use your reaction to reduce the damage by an amount equal to your paladin level + your Charisma modifier (minimum of 1).

Once you use this feature, you can't use it again until you finish a long rest.