You walk the path of a true hero who's power lies dormant until awakened by harnessing your Ki. This power, "One for All", Is gifted to those who prove to be courageous heroes willing to place the protection of others above their own well being. Harnessing your Ki allows your body to drastically shift into one befitting such a hero. 

One for All

Once you Choose this subclass at lvl 3 you gain the Ability to Channel a large amount of Ki throughout your body granting you increased Physical Power. As a bonus action you can spend 3 Ki points to assume your heroic form. For 1 minute while in this form you gain the following benefits:

• Your martial arts die becomes 1d6 (1d8 at 5th lvl, 1d10 at 11th lvl, and 1d12 at 17th lvl) 
• Your "Unarmored Movement" bonus and jump distance is doubled
• You have resistance to bludgeoning damage
• Advantage on Strength Checks and Saving Throws

Texas Smash

Starting at lvl 6 your ability to channel One for All has reached the point where you are able to focus it into devastating attacks. While you are in your hero form you can use your bonus action, and 1 ki point, to make a single empowered unarmed attack. On a hit the target takes 3d6 Bludgeoning damage (3d8 at 5th lvl, 3d10 at 11th lvl, and 3d12 at 17th lvl).

"I Am Here"

After reaching lvl 6, when an ally within 15ft of you is targeted with a melee attack you can use your reaction and spend 1 ki point to move next to your ally impose disadvantage on the attack. If the attack still hits you may choose to take the damage instead of having it dealt to your ally.

Symbol Of Peace and Justice

After you reach lvl 11 the first time you assume your Hero form each day doesn't cost you any Ki points. The form still maintains all other restrictions and benefits including duration.

Plus Ultra

Starting at lvl 11 when you spend a ki point as a bonus action to use the Texas Smash class feature you can instead spend 2 Ki points and make an additional empowered unarmed strike.

United States of Smash

By the time you reach lvl 17 you have learned to focus your power into a single earth shattering blow. As an action in your hero form, you can choose to spend 6 Ki points to make a single unarmed strike against a creature within range. On a hit the target takes 10d10 force damage. However, if the target has less then 100hp remaining they instantly die. 

Once you make this attack, whether you hit or miss, you instantly loose your hero form and gain 2 points of exhaustion. You may use your bonus action on the same turn to spend 3 Ki points to maintain your hero form but you will still gain the 2 points of exhaustion.