With factions, people say Eles got shafted, that we got no good spells, yadda yadda, but I found at least 2 particular spells that can turn your run of the mill fire nuker into a unstopable aoe-damage dealing force!
They are:
and
This is the build I'm using:
(Fire Attunement - Glyph of Renewal - Meteor Shower - Arcane Echo - Auspicious Incantation - Rodgort's Invocation - Glyph of Essence - Res Sig/Aura of Restoration)
I use Rago's Staff, but any items giving +15 energy should work.
Cast Fire Attunement, GoR, MS... Arcane Echo the MS, cast Auspicious Incantation, then cast the echoed MS, you should be back to 50+ energy... GoR again, Rodgort's Invocation, Rodgort's Invocation... When GoR reloads, cast it, cast Rodgort's Invocation, Glyph of Essence (you wouldn't have energy to cast anything else after that anyway) and one last RI to finish.
Your Meteor Shower should have reloaded right now, regen a bit... cast AI, RI Again (to recover energy), GoR, Meteor Shower, and the cycle begins again...
Exhaustion could be a problem, but there's usually enough of a breather between encounters to recover from it, (and a good Echo Nuker should be used to managing it anyway

I've only used this for a few hours, but I can honestly say I'm doing a lot more damage than I used to, and I'm having almost no downtime.
Edit: somehow I wrote Mark of Rodgort instead of Rodgort's Invocation...
