Improvisation

[LynxDubh]

Gotta disagree with you as the 0 stack version gives a party regen, and while it's not literally the moon, it's still something that helps. You can use this weaved between two weaponskills and it will happily do its work after.

It is at best a 500 total regen, which goes down if you are using the shield prior to meaningful damage. Not really something I would be excited for with a lvl 80 capstone. In order to really get a good regen you need to channel it, which is almost never worth it over getting in a Standard or Technical during downtime. And during that channel the healers will have already healed everyone to full.

Honestly, I'd also trade the Rising Rhythm for Esprit gain again paired with the X% shield. As long as it would keep the ticks at 5/10 per tick and not rely on allies standing in it. Then you could have mit and some damage incentive for what little downtime you get nowadays. Or have the Rising Rhythm give Esprit per stack. 0-10 esprit, 1-20, 2-30, 3-40, 4-50 or so.