Would Duality working with combo effects be a bad idea?

[Jonnycbad]

That's all it is. A stronger life surge. Without the heal. It is stronger then LS yes but I think the skill is so lackluster when you make that connection a ninja hits things fast and hard and multiple times. The ability had the potential to hit twice with each WS for 10 seconds but they said whoa wait a minute and just gave you a slightly better lvl 18 skill as a lvl 58 skill.

Yes, but NIN has a host of other tools pre-58 that made it on par or better than DRG even with life surge. Even if NIN's DPS was slightly below DRG pre3.0, +10% raid damage for 20% of the time contributes significantly more added damage than a DRG does. So really, they gave it to NIN late in the game because they didn't really need it in 2.0. In 3.0, now that MNK and DRG are stronger they had to give NIN a few things to increase their damage as well--hence Duality. It's all balanced in its own way.

Given that other DPS have a native skill to boost the damage of the next WS (Reassemble, Life Surge, Barrage), NIN was given one as well. Don't forget NIN has a permanent 20% DPS boost with their Venoms compared to MNK which gets 5% and DRG which gets 15% (but requires upkeep).