Ritualist/Ranger
I started this build wanting to try something new, with the GW filled of A/mo etc atm. But ofc wanted a build that would also work. And godda say this is damn fun to play (you can spam spells etc almost as much as you want without going oom) and it also does damn good dmg +has good self healing abilities.
Gear:
sword + offhand (channeling) {with hp runes}
Attributes:
Beastmastery 12
Channeling 12+3+1
Heal as one {E}
Predatory bond
Nightmare weapon
Wielder's strike
Ancestor's rage
Charm animal
Res sig
[optional]
basicly the tactic is simple: Before you attack enemy use nightmare weapon, hit him couple of times and then use wielder's strike+Ancestor's rage. This gives a dmg of 150 (3xnightmare hit) + about 230 from strike and rage. If you get a lot of dmg, heal with: Heal as one + using nightmare weapon. Every spell here has rather short CD, so you can use your spells often + they have low energy cost too.
I won in RA almost every single 1vs1 situation and suprisingly fast.Even killed couple of A/mo's.
There is also one optional slot in this build where you can add more def or heal or dmg, which ever you prefer.