Overview
This build reimagines the Witch as a crossbow-wielding bleed specialist, pairing the Plasma Blast skill with the Blood Mage ascendancy to turn a single charged shot into a lethal damage-over-time effect. Plasma Blast fires a piercing laser that charges for roughly three seconds and lands one enormous hit — the ideal delivery mechanism for the bleed archetype, which trades rapid attacks for slow, punishing bleeds. Where a normal bleed build is locked to physical damage, Blood Mage lets elemental damage feed the bleed as well, and it automatically aggravates your bleeds for double damage.
The patch 0.5 revision leans on that aggravated-bleed identity while layering in explosive clear. A secondary Galvanic Shards setup handles packs, Herald of Blood detonates bleeding corpses, and a Repulsion curse spawns living lightning minions that self-trigger to sweep white mobs — the creator clears the road to a Breach boss without a single manual attack. Against bosses the payoff is dramatic: because bleed bypasses energy shield, armour, and resistances, one well-placed Plasma Blast is enough to bleed out most targets in the game.
Pros & Cons
Pros
- Exceptional single-target damage — one Plasma Blast can bleed out most bosses outright
- Bleed ignores enemy energy shield, armour, and resistance, so no elemental-weakness curse is needed
- Explosive, near-automated clear via Herald of Blood, Repulsion, and living lightning minions
- Very affordable to start; the core uniques are cheap and the secondary setups carry you early
- Blood Mage auto-aggravates bleed (double damage) and lets elemental damage scale it
Cons
- It’s a damage-over-time build, so upfront burst is low — things die a beat after you hit them
- The three-second Plasma Blast charge time makes it clumsy against fast-moving hordes
- Relies on a dual-weapon-swap rotation and charge automation, so the gameplay is fussier than a one-button build
- Reaching natural 100% crit chance takes meaningful investment before you can drop the Effigy of Cruelty crutch
Key Skills
- Plasma Blast — the charged crossbow beam; your primary single-target hit that seeds the killer bleed
- Galvanic Shards — cone of bolts that chains off shocked enemies; the main clear skill for packs
- Herald of Blood — detonates bleeding enemies on death, propagating explosions that spread bleed
- Repulsion + Blasphemy — a curse that triggers attacks on hit, spawning living lightning minions for hands-free clear
- Blood Hunt — second-weapon execute that spends accumulated blood loss to finish bosses
Gear & Anointments
The build is weapon-swap centric: a crossbow for Plasma Blast and Galvanic Shards, with a second set carrying either Blood Hunt (needs any spear — its base damage is irrelevant) plus Effigy of Cruelty, or a talisman for the Rend lightning buff. Mandatory uniques are Alpha’s Howl (helmet, your main spirit source) and Malagaro’s Virtuosity gloves, which enable pinpoint critical so you can ignore crit-damage entirely and stack crit chance. A Heart of the Well jewel with two extra-damage modifiers is unmatched but not strictly required, and the cheap Effigy of Cruelty adds up to 10% base crit chance against affected enemies — huge value for boss rotations. Anoint the Theurgic Generator to passively generate power charges for Charge Regulation, and take the Resonance keystone since your gem setup skews toward frenzy charges. Rings matter a lot: prioritise added attack damage of all types.
Endgame Notes
Early on you level as a standard Witch with the Essence Drain + Contagion combo, then switch to the bleed setup once Plasma Blast unlocks and you’ve cleared the second ascendancy trial (or simply wait until maps). The final passive tree is built entirely around critical hit chance and ailment magnitude — with Malagaro’s gloves you skip crit-damage nodes and instead split passives for large amounts of skill-effect duration on your buffs and debuffs. At higher budgets, aim for natural 100% crit so you can retire the Entangle/Effigy crutch and run the Rend lightning talisman for a flat 50% more lightning damage. Remember bleed scales off pre-mitigation damage, so elemental penetration is irrelevant except to sharpen Galvanic Shards clear.
Credits & Source
Build credited to Odealo. See the source video for the full build’s gameplay footage and voice commentary: Plasma Blast Blood Mage Patch 0.5 Update - Path of Exile 2 Build Guide.