Way of the Frozen Fist

Monks of the way of the Frozen Fist are taught the techniques of the frozen mountain, harnessing its resilience and its affinity for the cold. They often train in unrelenting conditions to push their bodies and minds beyond their normal limits in an attempt to be prepared for any threat that comes their way. Monks of this path tend to be cold, deceptive, and even scary to some as a result of their training.

Ice Bracers

Starting at third level, you are able to form bracers made from ice. You may spend one Ki point to create the bracers as a bonus action. The bracers last one minute and grant +1 bonus to AC. When you hit a creature with an unarmed strike you can choose to shatter the bracers, if you choose to do so the creature takes an extra 1d6 cold damage in addition to the attack’s damage. When you reach 11th level in this class, the damage increases to 2d6.

Should you remove the bracers before the minute is complete, they immediately melt.

Chilling Personality

Also at 3rd level, you gain proficiency in Intimidation, Deception, Insight, or Persuasion checks (your choice).

Flurry Strikes

Starting at 6th level, when you hit a creature with both of your attacks granted by the fury of blows it falls under the effects of a successful slow spell until the end of your next turn

A creature affected by this feature can make a Constitution save vs your Ki save DC at the end of its turn. On a success, the effect ends. Creatures immune to cold make the save  with advantage

Mountainous Resilience

Also at 6th level, you gain resistance to cold damage and whenever you make an attack, you ignore resistance to cold and treat immunity as resistance

Deep Freeze

Starting at 11th level, as an action you can stomp on the ground, causing the area in front of you to become slick with freezing ice. As an action, each creature within a 25 ft cube originating from you must make a Dexterity saving throw vs your Ki save DC or take 2d6 cold damage. Additionally, the area becomes difficult terrain until the start of your next turn. 

You may increase the effect of this feature by spending Ki points. When you use ki points in this way, you may choose to coat yourself in a protective layer of ice to gain temporary hit points equal to your wisdom modifier. For each Ki point you spend, to a maximum of 3, you increase the cold damage by 2d6 and the temporary hit points by 1d4.

Ice Gauntlets

Starting at 17th level, when you use your ice bracers you may choose to spend 2 ki points to instead have them take the form of Ice Gauntlets which lasts 10 minutes. They function the same as the bracers with a few added benefits:

At the start of your turn, you may choose to gain temporary hit points equal to your wisdom modifier.

When you shatter the gauntlets, each creature within 5ft of the target other than yourself must make a Dex save or take the same damage the original target would take before reductions.

Whenever you would suffer a critical hit, you may attempt to parry the attack as a reaction. When you do so, the damage from the attack is reduced by 2d12+ DEX mod+ Monk Level. Should you reduce the damage to 0 you regain a ki point up to your maximum.