well I am lvl 15 but my current build is
Mighty stroke 3
Aggression wave 1
Warden Sprint 4
shocking stoke 4(will be 5)
punishment 1
with a simple combo activate the Warden Sprint 5 sec before getting into combat then shocking stoke and then Mighty stroke and if I am in a party then maybe Aggression wave
I found it as a pretty nice combo