Vaettir Farmer

Maintain Obsidian Flesh, and Stoneflesh Aura with Glyph of Swiftness. Stoneflesh can be cast without it in a pinch, but you will have a tighter window to recast it next time. If you have to choose which buff to cast; Stoneflesh>Obsidan. One round of hexes will not kill you, but just a couple seconds of Vaettir pecks will. DO NOT let Obsidian Flesh drop during your DPS phase though. They will all scatter, and will take forever to pile back up. Keep Storm Djinn’s Haste up to stay ahead of the Vaettirs while gathering, and always take at least few steps in between spell casts when possible to not get trapped.

Once piled up, recast buffs>Arcane Echo>Wastrel’s Demise. Swap targets and spam both Wastrel’s off CD. Try to pick targets that still have Lyssa’s Aura on their skill monitor to get the full damage out of your hexes. Recast buffs if needed, and you can skip the glyph if they're almost dead.

Elemental Lord just gives you an extra second on Obsidian Flesh, and is therefore optional depending on your level of confidence. I like it because it just makes the farm more chill.Cry of Pain is a good swap.

Any enchanting staff will work, but adept+ANA helps.

This build can also farm nearly any caster enemies, if you simply add Stone Striker to the bar. If you can determine the damage type, you can just use the appropriate Mantra instead. Mantra of Lightning when farming Dragon Mosses for example.

Example Vid: https://www.youtube.com/watch?v=o2RVZbAZ2hY