Long ago, in the temple of Atrios near the spine of the world, there lived a monk named Nelthurin who practiced unusual magics and techniques with his ki. He had a few disciples who followed his teachings and studies and these monks became their own sect named The Bladed Souls. when selecting this class at 3rd level you develop the ability to channel your ki into a physical manifestation from the mystic tattoos placed on your body, turning them into spectral versions of the weapons they depict.

Soul Spark

Starting at 3rd level you develop the ability to channel your ki into a physical manifestation. As a bonus action you can lift the ink from your body from one designated tattoo and change it into a spectral form of the weapon that tattoo depicts. This weapon lasts for one minute (or until you use a bonus action to dispel it) and does magic damage according to the type of damage it would normally deal (I.E. a depiction of a dagger or short sword would do magical slashing or piercing damage, a depiction of a staff would do magical blunt or force damage). 

Astral Armament

Starting at 6th level you've not only grown your ki but your ability to summon your spectral weapons and to hold it. When you summon a spectral weapon from the tattoos as a bonus action, you can spend an additional ki point to extend the duration of the weapon to a number of minutes equal to half your proficiency bonus (rounded up, minimum of 1). once you use this feature you can't do so again until you finish a long rest. 

Spectral Summoner

At 11th level your control of the mystic tattoos and your ki has grown significantly, when summoning one of your spectral weapons as a bonus action you can spend 4 ki points instead of 3 to summon a second weapon at the same time. While using dual weapons, once per round you can use both weapons to make a single attack rather than attacking twice (you can attack your normal number of times though your first strike does 2 attacks), though doing so reduces your movement speed by half until the end of your next turn. Once you use this feature you can't do so again until you finish a long rest or until you spend the same amount of ki to do so again. 

Striking Spirit

Your mastery of your ki and spectral summoning has become so great you can now enhance your weapons. as action when you summon your spectral weapon(s) you can spend 5 ki to enhance the damage your spectral weapons deal by a number equal to your proficiency bonus for one minute. if you are holding more than one weapon then the buff is divided between the weapons with half of the buff going to each one (each would become a +3 weapon). When using this feature, any creature you attack must succeed on a wisdom saving throw (DC equals 10+wisdom mod+ proficiency bonus) and take an additional 2d6 magical damage on a failed save or half as much on a successful one. once you use this feature you can not do so again until you finish a long rest.