Amulet of Enlightenment

This amulet amplify's the spiritual energy of the user making it able to realice feats before imposible. 

While the amulet its being wore by a monk he gains the following benefits:

since level 1

it gets extra Ki points equal to its proficiency level,

since level 2

it also gets the chace of as a reaction reduce the damage of a melle attack taken by 1d10+proficiency+monk level

If you reduce the damage to 0, you can respond to the attack. If you respond to an attack in this way, you can spend 1 ki point to make a melle unarmed attack as part of the same reaction

since level 5

the amulet can attune to one magical melle weapon in which you have proficiency, the weapon also needs to lack the heavy, special or two handed and empower the unarmed strikes as if they were the weapon (example: if you attune to a Flame Tongue shortsword you get the bonus action command to erupt flames from its fists, illuminate the area and deal extra fire damage.)

it takes an hour to attune a weapon and while you are attuned the weapon becomes a non magical weapon and looses any magical capability  unless its used by you.