Oath of the War Sun

You swear an oath to Farram the lost God of war and sunlight 

Channel Divinity

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

Sunlight Blade. You can use your Channel Divinity to imbue your weapon with the power of the sun for 1 minute. As a bonus action, you can cause sunlight to eminate from your weapon. The weapon is now considered magical if it wasn't already and it deals an additional 1d4 radiant and  1d4 lightning damage for the duration. While this Channel Divinity is active your weapon also sheds bright sunlight in 15 foot radius and dim sunlight for an additional 15 feet.

Soothing Sunlight. You can use your Channel Divinity to soothe the wounds of yourself and your allies. As an action you can create a well of sunlight to appear, it lasts for 1 hour, in a space you can see within 30ft of you. Any creature that takes a short rest within the light gains temporary hit points equal to your level plus your charisma modifier and is cured of any non-magical disease or poison afflicting it.

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of the War Sun Spells

Paladin Level	Spells
3rd	faerie fire, bless
5th	aid, spiritual weapon
9th	magic circle, haste
13th	guardian of faith, divination
17th	globe of invulnerability, mass cure wounds

Aura of Warding

Beginning at 7th level, ancient miracles lay so heavily upon you that it forms an ward. You and friendly creatures within 10 feet of you have resistance to damage from spells.

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

Lightning Stake

Starting at 15th level, you can use your action to call forth a stake of lightning to tear your enemies asunder dealing 5d12 lightning damage and potentially causing them to be stunned

Additionally, you suffer none of the drawbacks of old age, and you can’t be aged magically.

Champion of the Sun

At 20th level, you can assume the form of an ancient force of the War Sun taking on an appearance you choose. For example, your skin might turn grossly incandescent or take on a golden like texture, your hair might become ethereal radiant light.

Using your action, you undergo a transformation. For 1 minute, you gain the following benefits:

• You gain resistance to all damage. 
• Whenever you cast a paladin spell that has a casting time of 1 action, you can cast it using a bonus action instead.
• You have advantage on attack rolls against enemy creatures within 10 feet of you.
• You gain a flying speed equal to your walking speed

Afterwards you suffer 1 point of exhaustion 

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