Cursed monk

Hands of harm. Once a turn when Cursed monk hit a creature with an unarmed strike he can chose to deal extra 3 (1d6) necrotic damage. 

Multiattack. Undead  monk makes three unarmed strike attacks.

Unarmed Strike. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage.

Ready to fight. As part of his action cursed monk can choose one enemy in 30 ft. and for next 1 minute he gain 2 to his AC against all attacks targeted creature make.

Deflect Missiles. In response to being hit by a ranged weapon attack, Cursed Monk deflects the missile. The damage monk takes from the attack is reduced by 1d10 + 6. If the damage is reduced to 0, monk catch the missile if it’s small enough to hold in one hand.
If he catch a missile in this way, he can make a ranged attack with the weapon or piece of ammunition he just caught (+5 to hit), as part of the same reaction. Cursed monk can use this ability 3 times a day.