One For All

You are the holder of One for All, and someday you will be the World's Greatest Hero. You stand vigilant against the tides of criminals and wrong doers of the world, with a smile and positive attitude to inspire your whole party to do and be better. An almighty powerhouse, as the wielder of One for All you will crush your enemies with your overwhelming attacks and sturdy body. 
Becoming the World's Greatest Hero is more than just being a hero, its standing up for the people around you and saving people no matter the self cost.

Full Cowling: 110%

Starting at level 3, you can use a bonus action to force yourself to go beyond your limits, surpassing and improving all your natural abilities for 1 minute. Once you use this feature, you can't do so again until you finish a short or long rest or until you expend 2 ki points.

Full Cowling: 110% has the following effects while active:

• Immense Speed: Your Movement speed increases by 10ft. This increases to 20 ft at level 11.
• Overwhelming Strength: Your Unarmed attacks gain additional damage equal to your Proficiency bonus.
• Indomitable Spirit: You gain advantage on Wisdom saving throws.

Neverwinter Smash

Starting at level 6, as an action while Full Cowling: 110% is active, you can spend 1 Ki point to focus your energy into a devastating attack. On a hit the target takes 3d6 Bludgeoning damage (3d8 at 5th level, 3d10 at 11th level, and 3d12 at 17th level).

You can spend 1 additional Ki point to deal an extra 1d6 (etc) bludgeoning damage, attempt to push the target back by 20 feet, or knock them prone. If being affected one of the latter two, the target must make a Strength saving throw. On a successful throw they resist the effect.

Neverwinter Smash can be used a number of times equal to your Wisdom modifier. This recharges with critical hits and after a short/long rest.

Symbol of Peace

At level 11, while in Full Cowling: 110%, bludgeoning, slashing, and piercing damage you take is reduced by WIS modifier + your proficiency bonus.

Plus Ultra

Starting at level 11 when you spend a Ki point as an action to use Neverwinter Smash, you can choose to spend 2 extra Ki points and make a second Neverwinter Smash.

Forgotten Realms of Smash

By the time you reach level 17 you have learned to focus your power into a single earth shattering blow. As an action during Full Cowling: 110%, you can choose to spend 10 Ki points to make a single unarmed strike against a creature within range. On a hit the target takes 10d10 force damage and is knocked prone.

Whether you hit or miss with this attack you are instantly forced out of Full Cowling: 110% and take 3d10 force damage. You can spend 6 Ki points to maintain Full Cowling: 110% and only take half damage. If you have no Ki points remaining, you can instead choose to take an additional 1d10 force damage and maintain Full Cowling: 110%.