Confidence
Direct sources
Höllvania / Hell-Scrub: ScaldraSurvivalRot. C5.41%18.5 expected runs · 42 runs for 90% · ≈ 3.5 hHöllvania / Hell-Scrub: TechrotSurvivalRot. C5.41%18.5 expected runs · 42 runs for 90% · ≈ 3.5 hHöllvania / Hell-Scrub: TechrotSurvivalRot. B2.18%45.9 expected runs · 105 runs for 90% · ≈ 8.8 hHöllvania / Hell-Scrub: ScaldraSurvivalRot. A0.97%103.1 expected runs · 237 runs for 90% · ≈ 19.8 hHöllvania / Legacyte HarvestLegacyte HarvestRot. C1.69%59.2 expected runs · 136 runs for 90%Höllvania / Legacyte HarvestLegacyte HarvestRot. B0.74%135.1 expected runs · 311 runs for 90%Höllvania / Legacyte HarvestLegacyte HarvestRot. A0.28%357.1 expected runs · 822 runs for 90%
We assume ~2.5 min per relic opening (short fissure). Per-mission timings are labeled by source: derived from game mechanics or community-estimated.
Expected runs = 100/chance · Runs for confidence p = ⌈ln(1−p)/ln(1−chance)⌉ · In a squad of 4 opening the same relic, the chance your part shows among the reveals is 1−(1−chance)⁴.
Each run has a 5.41% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.