Currently it extends the duration of tripmine grenade by about 20 more seconds. This armor piece is clearly designed for PvP and the biggest problem with tripmines are that they can be shot and destroyed easily. It'd be cool if Young Ahamkara's Spine extended the duration and made tripmines undestroyable.
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Nah, i think it should make the tripmine last either until you die, or until someone destroys it or trips it.