Oath of Secrecy

The Oath of Secrecy binds a paladin to keep a secret imparted onto them by their deity or some other powerful entity. Sometimes liked to wizards, they hoard secrets and seek out knowledge that others would not. The standards of conduct they hold themselves to vary on the nature of their secret, they do not hold the rest of the world to the same standards, but respect others that keep secrets to the grave, and even more those that keep it ever after. Many who swear this oath are devoted to gods of knowledge and magic, but the nature of ones devotion will heavily depend on the nature of the secret, and what gave it to them. In the same way, the iconography of such a paladin can vary greatly.

Channel Divinity

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

Sworn to Silence. As an action you target one creature you can see within 30 feet, the target must make a Charisma saving throw versus your spell save DC. On a failure the target is silenced, they cannot speak or make any articulated noise, they are unable to cast spells that require a verbal component or issue commands. This effect also blocks any telepathic communication with both your target and you, however you must remain silent for this effect to remain active.

You can end the effect as part of any other action, if you speak or make any articulated noise, or if you fall unconscious.

Turn the Unholy. As an action, you present your holy symbol and speak a prayer censuring fiends and undead, using your Channel Divinity. Each fiend or undead 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 Secrecy Spells

Aura of Secrecy

Starting at 7th level,  you and friendly creatures within 10 feet of you can't be detected with divination magic, any secret you or a friendly creature speaks within your aura cannot be heard by any creature you do not allow. Additionally if a secret is spoken within your aura you are able to hear and understand it.

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

Aura of Silence

Beginning at 15th level, creatures within your aura are unable to speak unless you allow them to, silencing creatures in this way prevents them from casting spells that require verbal components.

Unfathomable Truth

At 20th level, as an action, you can speak aloud your secret. Every enemy creature that can hear your words, even if they do not know the language, must make a Charisma saving throw versus your spell save DC. On a failure the creature is stunned as it attempts to comprehend the terrible secret you imparted onto them, it can repeat the saving throw after every 12 hours, ending the effect on a success.

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