Dagger Master

You've learned to fight with simple daggers, using your speed and fluent grace to move among your opponents with deadly precision.  You won't wear metal armor, counting instead upon your speed to protect you.  You can use other weapons, but prefer to fight with a pair of daggers as they feel most comfortable in your hands. 

Leaf in the Wind

With fluid movements, with the speed of a leaf the wind, you have learned to strike an enemy and then slip away without fear of being attacked.  During your turn, if you successfully make a melee attack against a creature, that creature cannot make opportunity attacks against you for the rest of your turn.

Because of your speed, you are able to draw a dagger and attack as a single action.

Dagger Attack

Starting at 3rd level, when you make a melee attack with a dagger, you may choose to deal slashing damage instead of piercing damage.  When slashing, your weapon's damage is 1d6 instead of d4. 

If you are dual wielding with two daggers, or a finesse weapon and a dagger, you gain a +1 bonus to your Armor Class.

Also, whenever you succeed with a melee attack action with your dagger, you may make a ranged weapon attack using the same dagger as a bonus action, as long as the new target is more than ten feet away.  

Dagger Master

Starting at Level 9, you can make an additional melee dagger attack against a creature you successfully hit with your attack action.  When you make any weapon attack with a dagger, you score a critical hit on a roll of 18, 19 and 20.

Defensive Attack

Starting at 13th level, whenever you successfully make a melee attack with a dagger, you may hold your bonus action and use it as an opportunity attack whenever your foe attacks.  Making this attack, you can choose to either subtract your DEX modifier from your foe's attack roll or add it to your own attack.

Death Dealer

Starting at 17th level, whenever you make a melee slashing attack with a dagger, you can increase the damage die to a d8.  If you are dual wielding with two daggers, you may make 2 attacks, each with your DEX and proficiency bonus.

If you make a ranged surprise attack with a dagger, you attack with advantage.  

Once per short rest, when making ranged attacks with daggers, you can draw and throw 6 daggers in one turn.