Oath of The Radiant Sphere

To hold the line against the Dark

To protect the light and the sun

To keep the peace within a fight

To put the infernal and dead to rest

• 3rd level: Oath Aura, Class Spells
• 7th level: Aura of Splendor (15ft.)
• 15th level: Absorb Elements
• 18th level: Aura of Splendor (30ft.)
• 20th level: Blinding Radiance

Channel Divinity

When you take this oath at 3rd level, you gain the following two Channel Divinity options. See the Sacred Oath class feature for how Channel Divinity works. (Both of the below options spend uses of Lay on Hands to work.)

Radiance Glow. You can use your channel divinity to expend uses of the Lay on Hands ability, granting 1 temp hp to each ally within 10ft. of you for every point spent.

Golden Resurgence. You can spend 3 points of your Lay on Hands to regain one 1st level spell slot up to a maximum of one 3rd level spell slot for 9 points. 

Aura of Splendor

starting at 7th level, you constantly emanate a warm aura while you’re not incapacitated. The aura extends 15 feet from you in every direction, but not through total cover.

Your aura sheds bright light for 5ft. and dim light for 10ft., while within your aura you and your allies have advantage against undead and fiends also within your aura.

Radiance Star

Starting at 15th level, once per long rest, you can cast the Lunar Flare spell as a bonus action.

Sun's Rage

At 20th level you become the Avatar to the Sun God's rage, gaining access to the following effects for 1 minute:

• All your attacks now do an additional 1d12 Radiant damage.
• Your maximum AC is increased by 3.
• Your melee weapon attacks score a critical hit on a roll of 19 or 20 on the d20.

Once you use this ability, you cannot do so again until you have finished a long rest.