Why Subtlety
I find myself in stealth a pretty often and with the regen of 10 energy per 5 sec after using Ambush, Cheap Shot, or Garrote is vary useful when in combat keeping energy up keeps me swinging

Why Initiative
All stealth abilities give 2 combo points instead of 1.

Why Assassinate
I find myself doing allot of 1v1 fights or stoping the running heroes.. and jumping back into stealth while chasing just to ambush them helps dealing massive damage and getting the kill.

Why Death From Above
Being able to teleport to a running enemy hero makes for an easy kill.

Why Expose Armor
less armor means more damage for my team mates to deal

Why Cold Blood
I want that Eviscerate to finish the job.


Pros.
Good for 1v1 fights
Good for fleeing enemies
Faster attacking.
Faster energy regeneration time.

Remember this is off how i have been playing her and I am sure it is not the best build. but it fits me and my play style. I enjoy it. and untill I find another build i like better this is what i will use.

here is the video link to my First game with this build
https://www.youtube.com/watch?v=UuJPN0dwM2k