Way of Balance

You make it a priority to take care of and nurture yourself. You cannot accomplish anything if you're unhealthy. You often have an efficient mindset and accomplish tasks in the most efficient manner. Many Monks of Balance often swerve towards a neutral alignment. Thinking that anything can be perceived as evil or good, light or dark, etc.

Contrasting Body

Starting when you choose this tradition at 3rd level, you can manipulate your ki in such a way that during the first round of combat, all attacks you make using an Unarmed Strike Deal either Radiant or Necrotic Damage. In addition on the first round of combat, all attacks you make using Unarmed Strike have advantage. 

Balance of Life

At 6th level, you gain the ability to heal yourself or others. As an action, you can touch a living creature that is not hostile towards you, it regains hit points equal to three times your monk level. You must finish a long rest before you can use this feature again.

Pure Light & Dark

by 11th Level you have learned the secrets of the light and Darkness and you gain darkvision of 90 ft. If you already have darkvision this is increased by 30 ft. You also gain immunity to Blindness. 

Radiant Darkness

At 17th level, you gain the ability to use the Powers of Light and Dark simultaneously.  When you hit a creature with an unarmed strike, you can spend 3 ki points to imbue the strike with a massive amount of Radiant or Necrotic Damage, tainting the minds of those you attack. When you use this action, the creature must make a Wisdom saving throw. If it fails, it is reduced to 0 hit points. If it succeeds, it takes 10d10 Radiant or Necrotic (your choice) damage.