Equipment:
Fiery flame spitter with +enchant mod (helps with IoH to get to cave if needeD)
Shield with damage reduction in stance, while enchanted, or both. (for tanking while arcane echo is cast)
Any 60AL armor.
Stats;
Fast Casting 4 + 1
Illusion 6 + 1 + 3
Inspiration 4 + 1
Restoration 12
Channeling 10
Skills;
Vengeful Was Khanhei {E} (you couldn't not see this coming)
Arcane echo
Vengeful Weapon
Sympathetic Visage
Illusion of Haste
Physical Resistance
Channeling
Spirit Rift
Using Illusion of Haste if needed (against avicara), run to the cave!
Once inside, activate physical resistance and channeling. Aggro any number of trolls, cast arcane echo, and allow them to move close. Once they're all within range to start hurting you, cast VwK. From here, using infinite channeling energy, target a troll and begin rotating Spirit rift and Vengeful weapon whenever they are charged. After VwK wears off, wait a short while (a few seconds) before recasting the copy (because this build is very low on time). Continue with Spirit Rift and Vengeful weapon, renew channeling and phy res if needed. Activate the third VwK in the fashion shown before, and finish off the pack with the same method. Make sure you keep targetting trolls for spirit rift if your target dies.
Total time from begin of attack to killing of pack -> approximately 35 seconds. Faster than with echo SoJ 55'ing, I might say, and with no real upper limit.
'But Avarre!' you ask, 'why post this? Nobody plays mesmers anyway!' Well, twofold. One, it's faster than the mesmer 55 build so if you have a mesmer and want to farm trolls mindlessly, this works better (not to mention you can probably kill just about anything else that attacks). And secondly, all those little children who complain '55 is abuse, nerf nerf!' are invited to reread the part where this is faster and more efficient than the 55 build (if all goes smoothly... and its much harder to mess up on this build than a 55 one).
Credit:
The ritualist build and it's creators and promoters
Avarre (for sticking it on a mesmer)
Yay! A picture!
Small note : Avarre is away till 22nd, so can't answer anything
