Build:Dream Drifter

Full Build Details
Technically, this build only requires Hex Mage breakthrough; you can choose other breakthroughs as you see fit.

Faction requirement changes to ANY if Lantern of Souls is obtained as a legacy.

Primary damage is Ethereal: the least resisted damage type in the game.

This build only requires to maintain a single buff - Mist (skill).

Cast Flamethrower using Lantern of Souls is the only way to both deal damage and cause hex to a small group of enemies; cast Rupture after hexes are applied will detonate several enemies at once, causing massive AoE damage if they stand close to each other.

The overall best armor set for this build is Tenebrous Set, combine with enchantments Order of Discipline, Chaos and Creativity, and Speed and Efficiency, it provides ample damage boosts, resistances, and movement speed bonuses.

Tips:
 * Cast Jinx doesn't initiate combat, use it at your advantage
 * Torment will apply Sapped on enemies if they have Haunted hex (inflict by Jinx or Flamethrower) on them, renders many bosses that use elemental attacks pretty harmless
 * Eat Dreamer’s Root or Boiled Dreamer’s Root to guarantee the activation of Lockwell's Revelation
 * Sleep in a Mage Tent for one hour to receive the -15% mana cost buff
 * Maintaining Corrupted is recommended
 * Prepare an Energizing Potion in your pouch, just in case