Onee solid way we should be able to play a Nightblade in PVP is as an assassin that can go behind enemy lines in stealth, assassinate the enemy healer or an important damage dealer and then have a decent chance to come back alive.


Here is my idea to accomplish this:

1) The skills: Ambush, Surprise Attack and Killer's Blade should be synergized so that they can be cast in very quick succession, in this order.
Esthetically, their animations should look like one combo done my a skilled assassin.

Ambush: Should remain the same
Surprise Attack: Does oblivion damage equal to 15% of the enemies remaining health+flat amount based on maximum stamina. Ability cost should be at least doubled.
Killer's Blade: Should have increased damage and also increased cost.


2) The skill Dark Cloak should do the following: Cloak yourself in shadow to become invisible, invulnerable from all crowd control effects, gaining up to 90% damage reduction (based on missing
stamina) and 35% increased all regenerations
Duration: Indefinite
Type: Toggle
Cost: All your regenerations, instead of filling, now deplete your resource pools and vampire's health regen pentalty doesn't apply. Stunted regenerations for 3 seconds after ability ends



3) Oath of Death (ex Reaping Mark): Call upon the might of Sithis to flawlessly stun the marked target at first contact for 1.5 - 3 seconds (Based on their max health) (flawlessly stun meaning
they can't prevent or break free from stun).
If the target doesn't die within 7 - 10 seconds(based on enemy's max health), you are punished by Sithis for 50% of the damage done to them as oblivion
damage (decreased by your missing health%)