WarframeAlchemyLab ES
Rush

Farming plan

Rush

Arsenal: Rush
Dropped by
Another Betrayer, Rotation A Rare 2.21 %
Family Reunion, Rotation A Rare 2.21 %
Hot Mess, Rotation A Rare 2.21 %
Recover The Orokin Archive, Rotation A Rare 2.21 %
Sunkiller, Rotation A Rare 2.21 %
Table For Two, Rotation A Rare 2.21 %
The Aftermath, Rotation A Rare 2.21 %
Time's Up, Rotation A Rare 2.21 %
Kuva Lich Agor Rok (Level 80 - 100) Common 1.37 %
Exo Eviscerator Rare 0.28 %
Exo Supressor Rare 0.28 %
Kosma Eviscerator Rare 0.28 %
Chance of getting it by number of runs
0% 25% 50% 75% 100% 16 32 48 64 80 32 runs · 50% 32 runs · 50%

Each run has a 2.21% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.