It would be nice to see this come back in some way for FFXIV 2.0. Just thinking about it, it seems it would do a lot for content in general.

- Combined things like the battle regiment and certain body parts for bosses or even sub-bosses, would make people break their rotation mold. Focus on something like the horn of a dragon or tail to disable, whether temporarily or permanently, would just be more fun to do than grind down the monster and move out of AoE's.

- Could take in lesser used combo's and skills to help with the skill stacks and rather than boosting their damage, make them useful this way.

- Just thinking of it, all the additional abilities that could be added to certain combinations. To make it so it's not so one-sided on jobs multiple jobs could perform the same added effect whether it's additional single target damage / aoe dmg to help those who aren't AoE masters by nature assist with trash / debuffs / drain effect on the mob or even increase DoT or gives the mob an icon to allow for higher magic dmg.

Then again there's a ton of balancing issues. Still..that's just the ability to connect attacks and create something from it. Adding in body parts that could take away nasty abilities could help with people who don't like to just burn the monster down, could let the actual fight be more forgiving rather than one hit wonders if you take down the right part.

All in all it seems like a wonderful idea, but you would have to do the usual balancing act. Which is hard, whether people want to admit or not.