[.86 BUG] Reprisal is bugged. I have to auto-play the tactical battle every time it gets triggered.

How is it bugged?  Does the battle freeze when you use it?  I have a champion with Reprisal, and haven't had any problems using it.  I'm on Win 7 64, with Intel I7 CPU, ATI Mobility Radeon 5870.

Yes, the battle freezes the first time it gets triggered (the first time I get hit and my guy counterstrikes).  I have a similar system to you.  If it's working for you but not for me, then maybe I need to send in a saved game so they can troubleshoot.