I tried this out yesterday to do some grinding and rep work in Stillmoor.
This build needs a fairly decent 2h weapon and a high crit level to perform well (I'm over 1k crit and 850 AP self buffed).
The spec: Riftblade (44) / Champion (13) / Reaver (9)
The macros should be obvious. I put the Reaver stuff in with my main builder spam for ease of use. You can separate them if you'd like.
The only difference between my ST builder and my AoE builder is to swap Thunder Strike (AoE) with Searing Strike (ST), and of course to use Stormburst as your first AoE finisher.
Buffs: Blade of Elemental Affinity, Soldier's Bearing, Crest of Abyss, Avatar of Water
Theory: Big damage, Major self healing, and decent energy regen.
Results: I was able to solo the entire upper levels of Stillmoor elites whilst only needing to stop and drink twice (the casters are the only mobs that will give you any trouble). Large packs of mobs evaporate with this build, and it's quite funny to attack a pack of 10-12 mobs and watch your health go UP while they are eradicated. I had similar results in Ember Isle (never needing to stop and drink there with a bit of common sense). Very rarely will you run low on energy with this build (self buffed).
Comments? Thoughts? Was just messing around so this hasn't been theorycrafted or anything. Just a fun build to try.