Build:I Sang So Bad Everyone Died

Full Build Details
The two ritualist totems will put nearby enemies always under Haunted and Doomed, which enables consecutive Rupture spam, causing massive AoE damage. Keep dodging until Rupture is ready, no need for melee attacks at all.

Casting Torment will apply Sapped and Weaken on enemies around the totems, immediately reduce their damage output by 40%.

Stealth Training allows us to reach a convenient spot to place totems, cast Jinx without alert enemies, or avoid combat entirely (Feather Dodge and Stealth Training are the only two skills we need from Rogue Engineer).

Totems block most of the projectiles (friendly or foe), whereas hex spells are unhindered.

This build could work on any faction, equipment combination. What is suggested here is for the optimal experience: Isolated Rumination enchanted Scholar's Staff; Arcane Unison enchanted Scholar Circlet; Adrenaline enchanted Wolf Mage Armor; Speed and Efficiency enchanted Tenebrous Boots. Combine with Logistics Expert, and we'll have a constant 40% cd reduction, making combat way smoother.

While we have many choices on backpacks, Mefino's Trade Backpack is still the best for its sheer capacity. Dusk Backpack, Glowstone Backpack and Light Mender's Backpack are good substitutes.

Learn Acrobatics and Brains as soon as possible, they make a significant improvement.

Tips:
 * The tier 3 active skills under Primal Ritualist are useless to us in most cases; Nurturing Echo doesn't heal at all if not charged, and Reverberation is obsolete compare to Rupture. However, if you are co-oping, your companion could charge the totems for you (by hitting totems themself), so choose Nurturing Echo could provide extra healings to you and your companion.
 * Eat Dreamer's Root or Boiled Dreamer's Root to guarantee the activation of Lockwell's Revelation.
 * Sleep or repair equipment in a Mage Tent for an hour to receive the -15% mana cost buff. If you are co-oping and don't want to lose Lockwell's Revelation, you could also repair equipment and guard the camp for your homie!
 * Prepare an Energizing Potion in your pouch, just in case.
 * For enemies that are hard to fight around totems, apply at least 3 hexes on them first, then spam Torment, finish up with a Rupture for aesthetic.