Oath of Frostwarden

Frost warden paladins are those who have made an oath to cold itself specializing in cold and storm effects

Channel Divinity

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

Frost Imbuement. As an action, you can imbue one weapon that you are holding with Cold energy, using your Channel Divinity. For 1 minute, the weapon is considered magical, upon a successful attack, your opponent makes a constitution save against your paladin spell save DC on success nothing happens on a failed Save the creates speed drops to 0. 

You can end this effect on your turn as part of any other action. If you are no longer holding or carrying this weapon, or if you fall unconscious, this effect ends.

Frost Armament. As an action, you coat yourself in a protective frost that gives you temporary HP equal to double your paladin level.

Divine Frost

Upon taking this Oath Your Divine Smite and later Improved Divine Smite Can Deal Cold Damage if You choose.

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of Frostwarden Spells

Aura of Blizzard

Starting at the 7th level, a swirling blizzard appears making the area difficult terrain for all enemies, At the 18th level, the range of the Arua of Blizzard increases to 30 feet.

Blessing of cold

You gain immunity to cold damage.

Absolute Zero

At the 20th level, as an action, you remove heat from an area around you. For 1 minute, freezing air swirls in a 30-foot radius.

Whenever an enemy creature starts its turn in freezing air, the creature takes 10 cold damage.

In addition, for the duration, magical and nonmagical fire is extinguished granting immunity to fire damage.

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