Reflex Coil

Farming plan

Reflex Coil

Confidence

Direct sources

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
Raptor Uncommon 11.06 %
Profit-Taker Uncommon 10.26 %
The Sergeant Rare 7.52 %
Grineer Manic Rare 3.69 %
Another Betrayer, Rotation B Rare 1.47 %
Family Reunion, Rotation B Rare 1.47 %
Hot Mess, Rotation B Rare 1.47 %
Recover The Orokin Archive, Rotation B Rare 1.47 %
Sunkiller, Rotation B Rare 1.47 %
Table For Two, Rotation B Rare 1.47 %
The Aftermath, Rotation B Rare 1.47 %
Time's Up, Rotation B Rare 1.47 %
Chance of getting it by number of runs
0% 25% 50% 75% 100% 5 11 16 22 27 6 runs · 50% 6 runs · 50% 20 runs · 90% 20 runs · 90%

Each run has a 11.06% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.