I see, at first I thought her turn 1 x3 Negate Damages was a bit disappointing because it's so situational, but it still has its use I guess. One good thing about her is that she doesn't rely on crit, which is something I really need to counter anti-crit debuff bosses.
Yeah, I read a few comments about min-maxing for new players and I found that using ampules on lv1 girls will save me some money but to think about that, those comments were from years ago, and the game changed a lot since then. About ampules, I was a bit careful because I did a few training runs for ampule and I usually get 3x gold ampules per run, I think that amount per run is pretty low and stamina costly, my gacha 6th sense tells me to min-max the usage them, at least for my early stage.