Staff is a must it just provides so much, I also use axe dagger which is working well for me in tpvp wvw and pve dungeons no complaints as for traits i am 30/0/10/0/30. whatever build I run I have always used staff and had 10 in DM for Greater Marks. I find I use Death Shroud more and more in WvW Unyielding Blast in Soul Reaping and Reapers Might in Spite firing through zergs is a lot of loot bags :/ coupled with the occasional mark spamming aoe and life transfer.
