I think I might try out essence thief for general pve use for my stamblade. I dunno how it compares to BiS damage sets, probably not well, but with good light attack weaving it seems like a nice healing, damage and sustain set.
(2 items) Adds 967 Max Stamina
(3 items) Adds 967 Max Stamina
(4 items) Adds 129 Weapon Damage
(5 items) When you deal damage with a Light Attack, you have a15% chance to draw essence from an enemy. Collecting the essence heals you 4300 Health, restores Stamina and increases your damage by 12% for 10 seconds.