Burdening
Level
9
First commissioned by the wardens of the prison-planet Daegox 4 and now used in prisons throughout Near Space, the burdening weapon fusion often bears chains or manacles. When you score a critical hit using a weapon with the burdening fusion, the target gains the encumbered condition for 1d4 rounds. If the weapon already has a critical hit effect, when you score a critical hit, you can apply either the weapon’s normal critical hit effect or the burdening effect.
Source
Near Space pg. 150
Dragonscript
ID
74b64016114e1efc87656fd2