A monk who has trained in the art of the blade and uses there Ki to master blade technique, precision and force with specific weapons. Often these monasteries specialise in renting out there skills as contract killers. Mercenary forces during war or skirmishes. They are often hired out as members of militia town forces being cheap and lightly equipped with only weapons and no armour, while still being incredibly capable and dangerous warriors in combat. The monasteries they learn in are normally less secluded and often are built smaller and within a mile or so of a sister town they often task themselves with defending. For this reason monks of the Blade master architype have a far higher mortality rate as they engage in hostile combat far more.  They are supposedly pacifist only fighting this who would threaten the innocent, but blessing yourself with the ability to slay monsters far more effectively often leads to a temptation to betray the order and forge your own path of destructive wrath.

Blade skilled

Starting 3rd level when you choose this archetype , you gain proficiency with 1 of the following weapons, Scimitar, Rapier, Longsword. For the sake of combination with other class abilities the weapon you choose is considered a Monk weapons in your hands and can be used in combination with other class abilities that require monk weapon attacks. However the other option is to not gain proficiency in one of the following weapons but still be allowed to treat the weapon as a Monk weapon in combat for all the same reasons. Glaive, Great-sword, Halberd. You also gain the ability to attack again with the weapon as a bonus action so long as you spend 2 Ki points.

Precision-Attack

Once you reach 6th level in this class you gain the ability to counter strike any bladed attacks on you.  Any slashing attacks made at you can be countered with the use of this ability. When you use this ability as a reaction, the enemy has disadvantage on the attack, and if it fails you can spend Ki point gain a free attack on the enemy with your monk weapon, this attack has advantage to hit. As a reaction however, this attack cannot be followed up with a bonus action, flurry of blows or second Monk weapon strike. Additionally you gain the ability to use precision Dice. On Any attack made with a Monk weapon, not unarmed, you can spend 1 Ki point to add 1d6 precision Dice to your attack role or Damage role, after seeing the role but before the Dungeon master says whether it hits or not. This feature is capped at 1 precision Die per weapon hit and you must spend 1 Ki point per precision Die used.

Devastating Combatant

 At 11th level, you may choose a second one of the listed weapons from 3rd to become a Monk weapon in your Hands. Additionally, If you chose a Glaive, Great-sword, Halberd at 3rd level you gain proficiency with it. However, you do not gain Proficiency with one of those weapons if you chose it at 11th Level. The cap of Precision Die per hit is raised from 1d6 to 5d6 per Hit. 

 

Steady-Blade

At 17th level, you gain the ability to forgo all of the actions, bonus actions and movement on your turn in favour of falling into a meditative trance. When you do this You regain 1d10 Ki points at the end of your turn. If you chose a Glaive, Great-sword, Halberd at 11th level you now become proficient with it. You are also able to spend 1 Ki point to +10 to your attack role on your turn.