Farming plan

Arcane Tempo

Confidence

Direct sources

Venus / Vesper StraitSkirmishRot. C10.34%9.7 expected runs · 22 runs for 90%Neptune / Mammon's ProspectSkirmishRot. C10.34%9.7 expected runs · 22 runs for 90%Pluto / Khufu EnvoySkirmishRot. C10.00%10.0 expected runs · 22 runs for 90%Duviri / Endless: Tier 9Normal4.00%25.0 expected runs · 57 runs for 90%Duviri / Endless: Tier 1Normal0.67%149.3 expected runs · 343 runs for 90%Duviri / Endless: Tier 3Normal0.67%149.3 expected runs · 343 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.

Dropped by

Eidolon Teralyst Uncommon 18.5 %

Eidolon Teralyst (Capture) Uncommon 15.68 %

The Descendia: Infernum 20 Triple Arcane Rewards Rare 3.7 %

Chance of getting it by number of runs

Each run has a 18.5% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.