Frost Domain - Cleric Homebrew [Version 0.57]

Cold Fury
Clerics of the Frost Domain are masters of battlefield control, capable of freezing entire armies in their tracks. With their great durability and powerful restraining abilities, few dare to approach these unassailable bastions of the north.

Level 1: Bonus Proficiency

When you choose this domain at 1st level, you gain proficiency with heavy armor and all martial weapons.

Level 2: Channel Divinity: Freezing Smite

Channel your divine power to unleash a chilling strike.  Targets must succeed a Constitution Saving Throw or be instantly Frozen in place and take 2d6 cold damage and 2d6 melee weapon damage. The number of D6 used goes up at certain levels to 3d6, 4d6, 5d6, 6d6, and 7d6 at levels 4, 8, 12, 16, and 20 respectively.

Level 6: Northwind

Northwind
6th level Frost Domain feature - Starting at 6th level, your mastery of the freezing Northwinds grants you special abilities:
-You gain resistance to cold damage.
-You deal an extra 1d6 cold damage on every attack
-You can no longer fall prone on icy terrain

Divine Strike

At 8th level, you gain the ability to infuse your weapon strikes with divine energy. Once on each of your turns when you hit a creature with a weapon attack, you can cause the attack to deal an extra 1d8 radiant damage to the target. When you reach 14th level, the extra damage increases to 2d8.

Level 17: Boreal Bastion

Boreal Bastion
17th level Frost Domain feature
At 17th level, the freezing power of the frost domain empowers you further, allowing you to restrict your foes even more tightly. You gain immunity to cold damage. In addition, every hostile creature within 30 feet of you must spend 2 feet of movement for every 1 foot it moves.

Level 1: Glacial Ward

Glacial Ward
1st level Frost Domain feature
When an enemy attacks you or an ally within 9m you can use your reaction to summon a divine-empowered barrier of freezing energy. The ward absorbs incoming damage up to Level + Wisdom Modifier and then immediately dissipates.

Level 8: Potent Spellcasting

Potent Spellcasting
8th level Frost Domain feature
Starting at 8th level, you add your Wisdom modifier to the damage you deal with any cleric cantrip.

Level 6: Channel Divinity: Arctic Tempest

Channel Divinity: Arctic Tempest
With a surge of divine power you unleash a blinding storm of snow and ice, chilling enemies and hindering their movement. Deals 1d8 + Wisdom Modifier Cold damage per turn.