Overview
This build leans into the “purple fire” Blackflame fantasy, converting ordinary fire damage into a chaos-based ignite engine that produces some of the highest single-target damage available in 0.5. The Blackflame unique is the keystone: it transforms fire into chaos and rewards stacking ignite magnitude, ailment magnitude, ailment duration and chaos damage — all of which multiply together, so virtually every upgrade pushes boss damage higher. The 0.5 jewel changes and extra scaling options let the ignite base scale harder than ever before.
In play the build splits its tools. Fireball and Spark provide mapping coverage — chains, forks and explosions spread purple flames across packs so the screen clears once the build gets rolling. Incinerate is the true payload: a channelled spell that ramps extremely hard, and with the full Blackflame scaling it becomes one of the strongest boss killers in the game. The boss rotation is deliberate — set up Sigil of Power, apply shock with Thunderstorm, layer Enfeeble and Withering Presence, then stand safe and channel until the boss melts.
This is a caster that wants investment but rewards it, scaling toward a near-infinite-feeling DPS ceiling against single targets.
Pros & Cons
Pros
- Elite single-target damage — Incinerate ramps to the point where bosses die before completing mechanics
- Every offensive stat (ignite magnitude, ailment duration, chaos/fire damage, jewels) multiplies, so upgrades feel impactful
- Tankier than its life pool suggests thanks to heavy energy-shield and mana stacking
- Flexible budget-to-endgame scaling, with both versions available in the planner
Cons
- Mapping is only “good enough” — the creator states it is not trying to be the fastest mapper
- Needs a few seconds of ramp at the start of each map before clear smooths out
- Gear-gated on the Blackflame unique to function at all; max version wants pricey uniques like Mageblood-tier items and Headhunter
- Channelled boss rotation with multiple setup buttons (Sigil, shock, curses) adds execution complexity
Key Skills
- Incinerate — primary boss tool; channelled ignite that ramps to enormous single-target damage (Ignite, Searing Flame, Eternal Flame, Viridian, Considered Casting)
- Fireball — main mapping spell and backup damage, with Fork for pack spread
- Spark — secondary clear with Chain, Prolonged Duration and Projectile Acceleration for screen coverage
- Thunderstorm — shock + extra-damage-taken amplifier for the boss rotation
- Enfeeble / Withering Presence — defensive curse and chaos-amp layer
Gear & Anointments
The single most important item is the Blackflame unique, which makes the whole purple-fire conversion work — acquire it as early as possible and prioritise good ignite-magnitude rolls. The main weapon is a wand with plus levels to fire (or all spell) skills, plus mana and cast speed; a staff set can be used on weapon swap for higher burst. General gear stacks energy shield, intelligence, mana, life and resistances. Endgame unique options include Mageblood-class belts and Headhunter for smoother mapping. Specific item rolls and the exact planner routing should be confirmed against the source video.
Endgame Notes
Built for pinnacle and endgame boss farming. The ascendancy path (Necromantic Aegis into Blackheart and Rupture the Soul) leans on leech to fuel the damage engine, with the final ascendancy point flexed between budget and max-investment versions. With enough jewel and unique investment the single-target ceiling feels effectively infinite.
Credits & Source
Build credited to KaidGames2. See the source video for the full build’s gameplay footage + voice commentary: THIS CHAOS FIREBALL BUILD IS ABSURD IN 0.5! POE 2 Witch Build 0.5 (NEW META).