So taking a look at datamined Marisa, it was a really nice touch to have her use her left hand for her special artwork. That said, her stats are your typical Swordfighter spread, except that she kinda dumped her highest growth into HP at the expense of a little off of everything else, kinda wasting her BST. She's also a source of Infantry Pulse 2 or 3 if nothing else.
Lyon's not really doing it for me though. Yeah, he has Raudrraven++ for his Prf, but until Triangle Adept becomes a Sacred Seal, he's not going to be able to fully leverage his default kit. It doesn't help that he's slow as balls and not Def heavy enough to get away with it. Still, I've seen worse come out of GHeBs.
And of course, somebody went and checked and yes, Myrrh can totally run either Dragon or Flier Emblem buffs.
And thinking on it, of the Female Swordfighters/Samercidons of the series we so far have:
Ayra, Fir, Lyn, Eirika, Marisa, Mia, Athena, Lucina, Masked Marth (I guess), Hana, Selena and Soliel.
And are missing:
Lamia, Larcei, Creidne, Drei (or whichever Deadlord ends up as the female Swordmaster), Malice, Eyvel, Machyua, Mareeta, Echidna, Karla, Ismire, Lucia x2, Altina, Female Myrmidon Kris, Maris (i.e. Myrm Malice), Say'ri, Flavia, Severa, Yuzu, Lianna and Laevatein (so far as being playable).
We're over a third of the way there (which would be impressive if not for the fact that I'm listing one of the series staple classes; there's distressingly few examples of villainous female swordfighters that never turn good, and most of the exceptions are in FE4 alone), and if I were to pare it down to characters with realistic chances of getting into FEH, we'd be at about the halfway mark.
Grand Hero Edit Battle: And upon thinking on the other part, Infernal Lyon might have been more challenging if I didn't have a fully kitted out Horse Emblem team. I didn't even need Olivia beyond her presence making the AI move the enemies into easier to defeat positions. Its also gotten me to rethink my position on stuffing Tharja with 20k feathers to feed to Full Armor Eirika (I've decided to go with this giant robot anime term since the Ayra = Dark Eirika thing works too goddamn well; although given Neue Eirika's defensive stats are kinda in the shitter, it might behoove me to go with something like Victory Eirika, but then I don't think she can jettison her horse every couple of episodes either; frankly, she's like the exact opposite of SRW's Alteisen midseason upgrade, I guess Nu Eirika it is) since Ursula can still wreck people with a simple Mounted Emblem buffed Blarblade Tome.
Update Edit: So the February update includes more Weapon Refinery options including updates to Falchion users everywhere (even neater is that Marth and Alm get their own variants while the Ylisse crowd scores a third version) as well as Zephiel's lancesword (keeping him relevant to the runaway Red Armor powercreep, maybe), while Raven, Felicia, Caeda and Hinoka are scoring Prfs (Caeda getting a Wing Sword because whoops, they made her a Red unit with a shitty weapon and poor Atk, Raven's getting Basilikos, because Dorcas has the Tomahawk and Hawkeye continues to get ignored, Hinoka's getting her FEW Prf, or really any kind of Prf given how male dominated Prfs were in Fates, and Felicia's getting Silverware because why the fuck not).