expert at moving threw the battle field like a shadow killing targets in the back line using magic blades and invisibly to stay alive and cause havoc on the battlefield 

smoke bomb

you have charges equal to your proficiency bonus as an action you may expend one charge to throw a smoke bomb which creates a cloud of smoke that is a 10 foot by 10 foot square that blinds anything in it and when a creature enters it or starts there turn in the smoke it takes half your proficiency bonus rounded down d6 + half your level 

dodge

as a bonus action you may move half your walking speed and not take opportunity attacks from enemy's if you dodge within 5 feet of an enemy regain 1 charge of smoke bomb  

spectral blades

once per long rest for 1 minute you summon a pair of spectral blades that deal psychic damage equal to 1d6+your sneak attack + dexterity bonus + proficiency bonus  you cannot use sneak attack with spectral blades you may use 1 action to make 2 light attack or 1 heavy attack the will turn you invisible until you make another attack when you are invisible you may use sneak attack with spectral blades spectral its also a + 1 blade when calculating to hit and damage 

triple jump

you may jump 3 times and can do so in the air also ignore fall damage from using triple jump  

spectral defense

while using spectral blades you gain resistance to bludgeoning piercing and slashing damage