Newer player LF backliner
Necro/Reaper – Mid/Backline – Can never have to many necro’s
Ele/Tempest – Front/Mid/Backline – Can never have to many
Rev – You already know
Mesmer/Chrono – This can work but it’s not as popular, usually anymore then 2 is not really needed in organized play so you run the risk of losing a spot to one of the 3 above.
Stick with hammer rev, destroy everything.
What I call backbreaker, it’s glass hammer herald,
https://youtu.be/U3E4zb5j4uM
https://youtu.be/Lu-s534cOCo
I have used it in zerging and it works, if you are mindful of being caught out of position. Go crazy and have fun!
Other strong DPS backline, with utility and suport could be Elementalist with staff…. lots of damage and CC + water fields to support your melee train.
Also, like revenants, Elementalist can be played in frontline with different weapon set and stats (auramancer builds).
U can check www.metabattle.com for a backline elementalist build and do your on modificationts tu suit your style.
Dragonhunters can do backline damage with the bow, but not as efficient as Rev or Ele.