Overview
NeloGTz’s Gemling Legionnaire pairs Chaos Flameblast with Impending Doom, and this entry documents the build under one specific stress test: a juiced Grand Expedition map at tier 16. The creator made the video in direct response to viewers asking how the setup holds up in that content, so it is a targeted performance answer rather than a general build guide.
The pairing is the interesting part. Flameblast supplies a stacking area payload, while Impending Doom converts curse application into a delayed detonation — the two overlap so that packs get hit by the curse blast and the charged blast in the same window. Running that through Grand Expedition means dealing with dense, fast-arriving packs and the explosive-chain layout that expedition detonations create, which is a fair test of both clear and survivability.
Pros & Cons
Pros
- Demonstrated to hold up in juiced T16 Grand Expedition, a high-pressure density scenario
- Gemling Legionnaire’s gem scaling supports the multi-gem Flameblast/Impending Doom overlap
- Area-heavy damage profile suits expedition’s tightly packed detonation chains
- The creator’s live character is public on poe.ninja for verification
Cons
- The creator explicitly calls out that the expedition mosquito packs remain genuinely dangerous
- Source video is a showcase with no narrated setup, so gem links and gear are undocumented
- T16 juiced content implies a well-geared character rather than a budget entry point
- Curse-detonation timing adds a rhythm the player has to manage manually
Key Skills
- Flameblast (chaos) — the primary stacking area payload
- Impending Doom — converts curse expiry into a delayed detonation layered on top of Flameblast
- Remaining support gems and links are not narrated in the source; confirm against the creator’s poe.ninja profile
Gear & Anointments
The video does not cover gear. The creator links their live poe.ninja character in the description, which is the reliable reference for weapon choice, uniques and passive allocation — specific items should be confirmed there rather than inferred from footage.
Endgame Notes
The demonstrated target content is juiced Grand Expedition at T16. The creator’s framing is that the build performs well there but that expedition’s ranged chaos packs still pose a real death risk, so defensive investment matters as much as the damage setup.
Credits & Source
Build credited to NeloGTz. See the source video for the full build’s gameplay footage: Gemling Chaos Flameblast/Impending Doom - Juiced Grand Expeditions T16.