Oath of the Arcane Sentinel

The Oath of the Arcane Sentinel is a vow to lay down one's life to protect knowledge and magical secrets. These Paladins seek to make the world's knowledge available to all who seek it. 

Tenants of the Arcane Sentinel

Know all you can. An Arcane Sentinel should strive to constantly increase their knowledge of the world, no matter how much there is to learn

No knowledge is forbidden. Knowledge should be available to all, if there are those who try and restrict it, strike them down. 

Magic is a force for good. Never use your magic for evil, use it for the betterment of all life. 

Wield the Weave. To be one with the weave is to be one with magic itself, use your knowledge and arcane skill to be part of something greater than yourself. 

Arcane training

You gain proficiency in the Arcana skill.

Oath Spells

3rd-level Oath of the Arcane Sentinel feature

You gain oath spells at the paladin levels listed in the Oath of the Arcane Sentinel Spells table. See the Sacred Oath class feature for how oath spells work.

Oath of Glory Spells

Paladin Level	Spells
3rd	magic missile, identify
5th	misty step, locate object
9th	counterspell, glyph of warding
13th	hold person, arcane eye
17th	dominate person, wall of force

Channel Divinity

3rd-level Oath of the Arcane Sentinel feature

You gain the following two Channel Divinity options. See the Sacred Oath class feature for how Channel Divinity works.

Arcane Defense. As a bonus action, you can use your Channel Divinity to protect your allies against harmful magic. For the next minute, a number of creatures equal to your Charisma modifier have advantage on saving throws made against spell attacks. In addition to this, their weapons count as magical for the purpose of overcoming resistance and immunity to non-magical attacks. 

Arcane Smite. Immediately after you deal damage to a creature with your Divine Smite feature, you can use your Channel Divinity as a bonus action and cause that creature to have disadvantage on saving throws made against spells for the next minute. 

Aura of Arcane Assistance

7th- and 18th-level Oath of the Arcane Sentinel feature

Your allies' magic is enhanced by your presence. At 7th level, when an enemy within 10 ft. of you is targeted by a spell attack, you can subtract a number equal to your Charisma modifier from their saving throw.

When you reach 18th level in this class, the range of the aura increases to 30 feet.

Arcane Inspiration

15th-level Oath of Glory feature

You can use your martial success to augment your arcane recovery. Whenever you defeat an enemy, you gain one charge, you can use this charge to regain a spell slot, or multiple charges to regain a higher-level spell slot. For example, one charge would recover a first-level spell slot, and five charges could recover a fifth-level spell slot, or a second-level spell slot and a third-level spell slot. 

Wielder of the Weave

20th-level Oath of Glory feature

You can empower yourself with the essence of the weave. As a bonus action, you gain the following benefits for 1 minute:

- You are blessed with knowledge unbound, and you gain advantage on all intelligence and charisma checks.
- All your weapon attacks count as magical for the purpose of overcoming resistance and immunity to non-magical attacks.
- All your weapon attacks deal force damage, and both your weapons and spell attacks deal an additional d6+ your charisma modifier force damage

Once you use this feature, you can’t do so again until you finish a long rest or expend a 5th-level spell slot.