Mine is poison injection then a dodge roll for the extra penetration (wood elf) then shadowy disguise, surprise attack, light attack then wait for them to break free/dodge roll and then maybe another ambush if they do roll away straight into incap then executioner if needed
Tankier targets pretty much the same apart from 3 light attacks before poison injection then I can proc spectral Bow after a couple more hits on them
Using Asylum Bow and Greatsword (Disciplined Slash Set):
Poison Arrow (Asylum bow will boost damage by 45% if used after Spray)
Incap or Danwbreaker
Surprise Attack x2 until 50% health
Reverse Slash (until dead). If not dead quickly, your Reverse Slash with the Disciplined Slash set will generate another ulti very fast.
Works about half the time, but apart from the Chudan head and shoulders, I can be squishy as I'm geared for damage.