Demolitionist - Fire, Lightning, and Explosives at Range

What It Does Well

Officially framed as imperial pyrotechnic masters who are "part engineer and part sorcerer" - they prefer to engage at range with guns, traps, and explosives, but can also be proficient with melee weapons.

• ▸Fire and lightning lead, with physical, pierce, and chaos as secondaries - and passives scale them cleanly.
• ▸As a fighter: Fire Strike replaces the default attack, hits hard, and becomes an area attack through its upgrades, with either melee or ranged weapons.
• ▸As a caster: thrown area skills and placed skills cover a wide range of situations.
• ▸Crowd control: Stun Jacks, Flashbang, and others give several ways to stop enemies acting.
• ▸Support: Flame Touched also buffs pets and party members.
• ▸Resistance reduction: it can reduce elemental (fire, cold, lightning) plus aether and chaos resistance in the convenient category B (see the Resistance Reduction article).

Strengths and Weaknesses

• ▸Strength: high pack-clearing throughput from deep area damage, plus survivability through extensive crowd control.
• ▸Strength: a wide mix of offensive and support skills that suits many builds.
• ▸Strength: plenty of good hosts for devotion procs, with damage types and cooldown/proc rates that line up well.
• ▸Weakness: thrown attacks are easily blocked by terrain and enemies, and cost a lot of energy.
• ▸Weakness: on its own it scales health, Defensive Ability, and energy regeneration poorly.
• ▸Weakness: outside the temporary Blast Shield buff, it has no way to raise resistances and no damage absorption.

Choosing a Partner and Getting Started

The first mastery comes at level 2 and the second at level 10. Since Demolitionist already covers offense and utility broadly, the natural ask from a partner is defense.

• ▸Soldier: brings armor, health, shield block, and damage absorption - exactly the defensive layer Demolitionist lacks.
• ▸Occultist: adds resistance and Defensive Ability passives plus strong debuffs, and its chaos damage lines up as well.
• ▸Arcanist: shares the elemental damage types while adding a percentage damage reduction buff and an emergency evade for durability.
• ▸Spend attributes only up to gear requirements and put the rest into Physique (see the Attribute Points article).
• ▸Skill allocation can be respecced at the Spirit Guide at any time (see the Respec article).

1. Official Grim Dawn Game Guide: Masteries — Confirms the official framing of Demolitionist as part engineer and part sorcerer, preferring guns, traps, and explosives at range while still able to use melee weapons.
2. Grim Dawn Japanese Wiki: Demolitionist — Confirms fire and lightning as primaries with chaos, physical, and pierce as secondaries; Fire Strike as a default-attack replacement usable with melee or ranged weapons that becomes an area attack through upgrades; the absence of an exclusive skill offset by two strong permanent buffs; Blast Shield as the only true defensive skill; the health regeneration added to Vindictive Flame and the default ADCtH on Ulzuin's Wrath; and the category B resistance reduction plus the listed strengths and weaknesses.
3. Grim Dawn Japanese Wiki: Masteries index — Confirms the attribute growth (Physique 3 / Cunning 3 / Spirit 2), favored damage types (1. physical and lightning, 2. fire, 3. pierce and chaos), and the ranged, explosives-and-guns positioning.
4. Official Crate Forum: Grim Dawn Version v1.3.0.4 + Hotfixes — Official patch notes for the verified version, which changed Quick Jacks to reduce skill cooldowns by a flat amount instead of a percentage.