It uses the mesmer's primary attribute to cast elementalist spells very quickly. Nothing new in that, but with Stone Daggers, it's just pure fun.
Maxed out Fast Cast
Maxed out Earth Magic
-1 from either for Inspiration
Items are of course anything that give a chance for faster recovery of earth magic spells.
Mantra of Recall (my only elite, I know it needs something better here)
Stone Daggers (main source of damage)
Kinetic Armor (can be kept up infinitely unless stripped)
Armor of Earth (with Kinetic, you hardly take any damage at all)
Ward Against Melee (More protection for you and group)
Earth Attunement (Self-explanatory)
Channeling (Since you're in the middle of the battle with warriors around you, this helps feeding the machinegun)
Resurrection Signet (Self-explanatory)
But it needs help. A better elite, better self-defense, something that makes this thing little more than an annoying stoner turret. The deal is to go in as a mesmer, and fight like a elementalist on steroids.
Thanks for any advice.

EDIT: Changed some skills for battle longevity.