Alegria is basically the culmination of all the Demons in Tartaros it only showed that J & H are stronger than the average wizard, and few hours are enough to recover magic power of a significant proportions like with Tenrou Island for Natsu and his team,
https://v2.mangapark.net/manga/fairy-tail/i1628632/4,
And here is her fighting without SS:
https://v2.mangapark.net/manga/fairy-tail/i1628607/3, correction, one battle, her torture doesn’t really count as she didn’t even use magic then, and if you could call it torture, more like loss of clothing. Again, she can put amount of magic power to her attacks, it has been years since they duked it out since things with Lisanna happened, so it would be vague in memory. And yet Gray was nearly beaten by a Mira that was
literally stated to be tired and weakened, and not just assumed with Jacob vs Mira. And that only proves my point that Mira verse Jacob was her holding back too since others can see her so that means her base SS is her not holding back. What does Touka even have to do with this!?! I assume you meant with Brandi, Dimaria said that in chapter 501. Even humoring what is likely miscommunication, even if it was mind control, FT members are still in character for major percentage of the majority of the time. And yet her wounds have healed due to Brandish’s magic, as her other injuries are too minor to be considered, and Jacob just recovered as well, well Jacob is does not have fictional blind capabilities, his defenses are lowered since he can’t focus well with his eyes closed, he has magic to see the unseen but that still requires concentration.