Oath of The Blue Lantern OPTIONAL CLASS FEATS

The Blue Lanterns are linked to Hope, as one of the groups of Lanterns able to use an emotion of the emotional spectrum to project constructs, fly, and do other amazing feats.
The Blue Lantern Corps is one of the ten Lantern Corps that draw power from the Emotional Electromagnetic Spectrum. The original was the Green Lantern Corps, and the Blue Lanterns have been allies to the super-hero Green Lantern. Their power rings are charged by the emotion "hope," and they greatly increase the strength of any nearby Green Lanterns. 
All Blue Lanterns take the following Oath, as a call to arms, a philosophy, and a mantra in their hardest moments:
“In fearful day, in raging night,
With strong hearts full, our souls ignite,
When all seems lost 'gainst the tide of spite,
Look to the stars, for hope shines bright!”

Channel Divinity

When you take this oath at 3rd level, you gain the following two Channel Divinity options: Not & Applicable or, Not Applicable/NA

 

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of Devotion Spells

Aura of Devotion

NOT APPLICABLE. 

Starting at 7th level, you and friendly creatures within 10 feet of you can’t be charmed while you are conscious.

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

Purity of Spirit

NOT APPLICABLE. 
Beginning at 15th level, you are always under the effects of a protection from evil and good spell.

Holy Nimbus

NOT APPLICABLE. 
At 20th level, as an action, you can emanate an aura of sunlight. For 1 minute, bright light shines from you in a 30-foot radius, and dim light shines 30 feet beyond that.

Whenever an enemy creature starts its turn in the bright light, the creature takes 10 radiant damage.

In addition, for the duration, you have advantage on saving throws against spells cast by fiends or undead.

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