Infernalist Witch Leveling Guide in PoE 2 — Acts 1-6 & Early Maps

Infernalist Witch — Leveling Build at a Glance

Act 1 — Building Your Fire Foundation

Start Act 1 as any Witch does: grab Fireball from the starting gem vendor and equip Combustion Support as soon as you reach the Lioneye's Watch vendor after the Mud Flats. Fireball + Combustion applies a powerful Fire Exposure debuff that reduces enemy fire resistance by 15%, massively improving your clear speed before you have a full minion army.

Pick up Summon Skeletal Warriors from the Act 1 gem vendor (available after the Prisoner's Gate quest). Even two or three skeletons at this stage absorb hits from Act 1 bosses like Hailrake and significantly reduce damage taken. Your passive tree priority in Act 1 is to grab the three Witch starting nodes (minion life and spell damage) and then sprint toward the elemental damage cluster south of your starting position.

The Infernalist Witch is not a 'press one button' build during leveling — you are actively managing Fireball casts while letting minions tank. This is faster than trying to pivot too early to a full minion build that has low damage in Act 1.

Act 2 — Introducing the Infernal Hound

By the time you reach Act 2, you should have access to Summon Infernal Hound. This is the flagship skill of the Infernalist ascendancy and even pre-ascendancy, the Hound deals solid fire damage and draws aggro from packs. Slot in Minion Damage Support and Elemental Army Support (fire) to boost its DPS significantly.

Continue using Fireball as your primary clear tool while the Hound and skeletons act as meat shields and supplemental damage. The Infernal Hound's Fire Breath ability becomes noticeably powerful once you find the Awakened Fire Penetration support gem later, but for now, raw minion damage supports suffice.

Resistance is your most urgent gear need entering Act 2. The game begins applying elemental damage consistently from the A2 boss Amarissa, Daughter of Merveil. Aim for at least 40% fire and cold resistance before the boss encounter. Check traders and the crafting bench for resistance affixes on any item slot.

Act 3 — Ascendancy & Passive Tree Pivot

Act 3 contains the first Labyrinth. Complete it as soon as it becomes available — the Infernalist ascendancy nodes are a meaningful power spike. Prioritize Bound Nemesis first: it allows the Infernal Hound to empower nearby minions with fire bonuses, turning your small skeleton army into a genuine damage dealer.

After the Labyrinth, re-evaluate your passive tree. If you intend to go Energy Shield / Chaos Inoculation for endgame (the dominant Infernalist endgame style), begin routing your passives toward the Intelligence cluster near the Witch starting area and pick up as many ES nodes as you can while maintaining minion life bonuses. If you are playing a life-based version, stay on the lower portion of the tree and take life nodes west of the Witch start.

Act 3's endgame boss requires solid single-target damage. Ensure your Infernal Hound has at least three supports active. Consider adding Flame Wall to your bar — casting it at the feet of a stationary boss dramatically boosts your projectile damage via the fire exposure it applies.

Passive Tree Priority — Acts 1 through 6

1. Act 1: Take all three Witch starting nodes (Minion Life, Spell Damage, Cast Speed).
2. Act 1-2: Rush to the Elemental Damage cluster south-east of Witch start. These nodes apply to Fireball and indirectly boost Hound fire damage.
3. Act 2-3: Pick up the Minion Instability and Minion Damage nodes near the center of the tree.
4. Act 3: Route toward Intelligence nodes if going CI endgame. Pick up at least 3 ES nodes.
5. Act 4-5: Take the Chaos Inoculation keystone only after your Energy Shield is above 1,500. Before that, it removes all your life-based defense.
6. Act 5-6: Fill in Crit Multiplier nodes for Fire damage and complete the Minion Mastery cluster for the 'Minions have 15% more Fire Damage' mastery.

Acts 4-6 & Transition to Early Maps

Acts 4 through 6 are where Infernalist Witch starts to feel genuinely powerful. Your Infernal Hound now has 2 ascendancy nodes supporting it, your skeleton count has grown, and you have enough passive nodes to sustain a reasonable mana pool for Fireball spam if needed. The dominant playstyle shifts: let the Hound and skeletons clear packs while you focus fire on rares and bosses.

By Act 5, replace Fireball as your main skill with Ball Lightning of Static (or Crackling Lance if you prefer a different off-damage element) — fire damage from your Hound already handles most packs, and a secondary element skill helps against fire-resistant enemies in Act 5's volcanic zones.

Entering maps, your first priority is completing the second Labyrinth to get the Demonic Possession ascendancy node. This node removes the Spirit cost of one persistent skill, effectively giving you one free buff/curse without draining your Spirit reserve. Map tier 1-4 mapping is smooth with the Infernalist kit; start investing in the Atlas passive tree toward Ritual and Breach nodes for efficient early-map currency generation.

Skill Gem Transition Timeline