It was a proc that worked exactly the way that Shield Swipe works, except with Parries instead of Blocks, and twice the cooldown. The skill itself applied a 20s duration debuff that reduced the target's outgoing damage by 10%.

The reason it was removed was likely not because it was similar to Delirium/Halone/Storm's Path (the main issue with those skills was that Path stacked with the other two, but the other two were mutually exclusive), but because, in SE's words, they wanted all of the tanks to perform well in both a main-tank and an off-tank role. Since Reprisal was a significant source of DPS, only procced on a Parry, and you could only Parry while main-tanking, the old design wasn't compatible with the idea of DRK being able to off-tank.

Changing it to also proc on a TBN break is the solution that allows Reprisal to be reintroduced without compromising that design, as it would be available in either tanking 'role'.


Past that, I believe I've made the case for why it would be an appropriate skill to reintroduce to DRK, given the current state of balance, and how many of DRK's disparate issues it would address.