Tradeable
 
  On Status Effect+24% chance to trigger a second random Status Effect.
 
   24
   8,000
 
  
 
  https://www.warframe.com/droptables
 
 Secondary Encumber is a Secondary Arcane that, on a status effect from a secondary weapon, has a chance to apply an additional random status effect.
Can be sold for 1,000 Credits.
 Effect[]
 
Rank

Chance to trigger


0
4%


1
8%


2
12%


3
16%


4
20%


5
24%

Acquisition
Secondary Encumber can be obtained from Mirror Defense as a Rotation C reward. Alternatively it can be purchased from Otak for 60  Belric Crystal Fragment and  Rania Crystal Fragment each, with a total of 1,260 of each for max rank.
 
Item

Source

Chance

Expected

Nearly Guaranteed



Mirror Defense / C
5.70%
~ 17 C Rotations
117 ± 39 C Rotations


All drop rates data is obtained from DE's official drop tables.
See Mission Rewards#Standard Missions for definitions on reward table rotations.
For more detailed definitions and information,
visit here.

Notes[]
Encumber will only apply a max of 1 additional status effect per instant of time, similar to a very short cooldown.
Multishot and Status Chance values over 100% do not bypass this limit, but more multishot does allow more chances of an Encumber proc until one succeeds.
The average Encumber chance per shot can be calculated by: 1 - (1 - 24% × min(statusChance, 1)) ^ pelletCount
Hitting multiple targets at the same time will only allow up to one proc for only one of the affected targets per instant.
Explosions, Hitscan Punch Through ( Twin Kohmak), Beam Chains ( Kuva Nukor), Multibeams ( Ocucor,  Vermisplicer (Secondary)) and other simultaneous attacks will only proc up to once on a single target at a time.[1]
Projectile Multishot ( Detron) will only proc once per small target because the projectiles typically strike within Encumber's cooldown.
Delayed hits such as projectile rebounds ( Cyanex), embed delays ( Kompressa), and travel time punch-through ( Catchmoon (Primary)) can proc Encumber multiple times per shot because their hits do not always occur at the same time.
Forced procs ( Hystrix) can trigger Encumber.
Exalted Weapons ( Mesa's  Regulators,  Titania's  Dex Pixia) can not trigger Encumber.
Random proc is uniformly chosen from the following and is independent from the weapon's damage distribution:

References[] Patch History[]

Update 33.0 (2023-04-26)

Fixed primary target not receiving any bonus Status Effects from the Secondary Encumber Arcane while using a chaining weapon (i.e. Atomos).
Fixed the Secondary Encumber Arcane unintentionally counting staggering as a Status Effect, leading to many unintended Effects being applied.
This Arcane is intended to trigger only from Physical and Elemental Status Effects i.e. Status types which show on an enemy’s health bar.
Fixed file path appearing in the Secondary Encumber Arcane’s description.
Update 32.3 (2023-02-15)