Mainly for PvP
R/A
attribudes
beast mastery 9 (8+1)
expertise 13 (9+1+2)
dagger mastery 12
weapon:
zealous pvp daggers of (your choice)
dmg+15%
energy-5
armor: explorer's- (+30hp if remember right) or sentry's (AL +10 while in stance) armor with superior vigor
Skills
1.any lead attack (i use leaping mantis sting)
2.any off-hand attack (wild strice)
3.horns of the ox
4.falling spider
5.any strong dual attack (blades of steel)
6.moebius strice
7.tiger's fury or bestial fury
8.res
your job
so your job is to deal much damage in small time.
you kill warriors, rangers, monks, mesmers, eles, ritualists, assassins and necros.
Start by activating TF/BF and use skills 1,2,3,4 and. After using skills 1,2,3,4 and 5 your target should have hp below 50% so when you use moebius all your attack skills are recharged and you can use skills 1,2,3,4 and 5 again. So it's 11 hit combo. But you have to kill your foes 1 by 1 because otherwise horns of the ox wont do KD. there is 2 ways to kill your foe. a) start attacking with your normal attacks (dealing 3-17dmg) so your foe thinks that you are weak, but after while you release your combo and then it's too late for him/her to run away. b) if there is a monk in enemy team you have to get your team mates to distract the monk so you can kill the weakest link of enemy team
problems
energy is not a problem, for 1 x 11 hit combo you use only about 10 energy, so you will do fine with just 20 energy and 2 energy reg
your bigest problem is your self-healing... 'cause you don't have it! so you have to hope that you have monk or kill your foe, move back and regen...
also blind, empathy, SS, any block/evade stance, guardian or any similar skill/spell will shut you down, but if you see someone using stance just change your target.
i thank you for reading my build thread and i excuse my bad english

[EDIT] you only need major expertise rune