Overview
This is an exploratory day-two league-starter framework rather than a finished theorycraft — the creator’s plan is to begin with a safe Witch Hunter grenades build for the campaign, then pivot into Gemling Legionnaire once the new advanced-thaumaturgy quality system can be tested in maps. The key 0.5 mechanic powering this character is that every socketable skill gem now has an additional quality option through Gemling’s advanced thaumaturgy, with previewed examples like Fireball gaining a chance to fire eight extra projectiles in a circle. The whole pitch is to chase whichever of the ~200 in-game skill gems gets the most overpowered quality bonus.
The long-term target is a strength-stacking Gemling using Brutus’ Lead Sprinkler — a one-handed mace that grants Molten Shower triggers per 25 strength and adds 5–10 flat fire attack damage per 25 strength. With 2K+ strength projected as the late-league goal, both the trigger chance and the flat-fire conversion scale together. Defensive layering leans on hybrid evasion + energy shield with Shavronne’s Revelation belt for ES recharge.
Pros & Cons
Pros
- Massive build-pivot flexibility — Witch Hunter handles the campaign safely while Gemling is being scouted.
- Advanced thaumaturgy quality bonuses promise transformative skill-gem effects across the entire gem pool.
- Strength-stacking endgame scales both Molten Shower trigger rate and added fire damage from a single stat.
- Mercenary ascendancies are all viable fallbacks (Tactician, Witch Hunter, minion builds) if Gemling’s quality system underdelivers.
Cons
- This is largely speculation — the creator openly admits there’s no leveling tree yet and the build relies on untested 0.5 gem behaviours.
- Gemling has historically been a late-game ascendancy; the day-one experience is on Witch Hunter, not on the build’s namesake.
- Strength stacking requires substantial gear investment to reach the strength thresholds where Brutus’ Lead Sprinkler scales.
- Concrete skill choices for the final build depend on which quality bonuses turn out strong — no confirmed mapping skill at this stage.
Key Skills
- Grenade skills (Witch Hunter levelling) — Cluster Grenade / Mortar Cannon for safe campaign damage on a crossbow base.
- Fragmentation Shot + Permafrost Bolts — Considered as an alternate leveling skillset for variety.
- Brutus’ Lead Sprinkler (endgame) — One-handed mace with Molten Shower trigger and per-strength flat fire damage.
- TBD high-quality skill — Endgame skill chosen reactively based on which gem’s advanced-thaumaturgy quality bonus proves strongest.
Gear & Anointments
Leveling gear targets Witch Hunter standard — Soul Ward for defence, crossbow with high physical DPS, and the usual flat-damage-on-jewellery scaling. The Gemling transition pivots to strength-stacking jewellery, hybrid evasion/ES armour bases, and Shavronne’s Revelation belt for energy shield recharge.
Mandatory unique once the build commits: Brutus’ Lead Sprinkler for the strength-to-Molten-Shower interaction. The creator also speculates about future runes from the new 150-rune pool, but specific picks are not confirmed.
Endgame Notes
This build sits at the experimental end of the spectrum. The creator expects to spend 2+ weeks pivoting through different advanced-thaumaturgy quality options before committing — making it a poor day-one pick but potentially very strong once the league’s strongest gem-quality interactions are mapped.
Credits & Source
Build credited to Dslily. See the source video for the full reasoning and Witch Hunter-to-Gemling transition plan: My League Starter for PoE 2 0.5 — Gemling Legionaire Quality Stacker.