That's basically my point. Even if it's not proportionally amazing like what Beelzebub/Ronia would have, it's still very good for what it is.
I'm assuming that when Parvati isn't making hearts for healing, she's making hearts for Persephone to break?
That's the idea, yeah.
Honestly it would make more sense to run TPA over rows simply because that's what Beelzebub specializes in. So Haku/Percy both have one TPA, but Awoken Parvati and Awoken Hades both have two-- and their attack is incredibly good too (at least, Parvati's will be one she's hypermaxed, it'll be 2001). So there's a lot of heavy hitting there, but I have to wonder if Lu Bu wouldn't be a better sub somewhere in there just for the sake of a final punch. 6.25 is 6.25, after all...
And I do have a Meimei on that note, but I've done nothing with her yet. She'd work well with Persephone and Parvati, but she'd kinda shaft Parvati's recovery potential, which would be the whole point of using her over someone else. She'd work well if I dropped Persephone for Pandora, though.
Whichever brings the better results, I suppose. Haku has more punch and more awakenings but less HP/RCV, Meimei works better overall (but with less awakes) with better HP/RCV and Pandora compatibility-- and Parvati can just make hearts from water whenever needed.
EDIT: Alternatively, this IS a place where Lumiel could shine, because she gives orbchanging potential for both Pandora and Parvati at the same time. Though her stats are a little less good than Haku/Meimei on the whole, though-- she is unbindable and that's something. Once she gets an ult I'm sure her usefulness will be much better, since it's awakenings holding her back.