I have reprisal and mercy stroke stacked in one macro. Plus plunge in there too. It works and I haven't seen any situational flaw with it...yet. Since they're all non gcd and can be weaved in during gcds...shouldn't be a problem. Anyone using something similar and discovered any situation where these actions shouldn't be used together (because sometimes the macro picks what's available to execute first randomly). In important fights mercy stroke is just extra dps 99% of the time so..

Actually kinda thinking of throwing dark passenger into it too..