WarframeAlchemyLab ES
Atlantis Vulcan

Farming plan

Atlantis Vulcan

Arsenal: Atlantis Vulcan
Dropped by
Orphid Specter Uncommon 21.05 %
Ghoul Devourer Rare 0.37 %
Aurax Baculus Rare 0.11 %
Guardsman Rare 0.11 %
Chance of getting it by number of runs
0% 25% 50% 75% 100% 3 6 8 11 14 3 runs · 50% 3 runs · 50% 10 runs · 90% 10 runs · 90%

Each run has a 21.05% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.