Magia Record, the current Madoka Magica gacha, has a problem regarding Magical Girl tagging.
That problem being - a lot of the game's character designs that the canon calls Magical Girls are not anywhere near close to a "stereotypical" appearance of a Magical Girl, but may otherwise be unsearchable without the tag - you *can* try subtracting their school uniforms, costumes with their own chartags and similar, but you are not guaranteed that 100% of the search will be those designs, given the multitude of either fanmade costumes or one-off official ones without a name, along with instances of dual persona and multi-character pics where one person is transformed and one isn't.
But I do feel bad polluting the Magical Girl tag like this, even if I know how vague the concept of a Magical Girl can be (compare Sailor Moon to Winx Club S1 to OG Madoka to Precure). But there's a problem - unlike series like Sailor Moon, MGs in Madoka Magica as a whole do not have separate names for civilian and MG persona.
The only work-around for creating chartags under the current "costume must be named for a separate chartag to be created" is that these costumes very technically have their own names - here are in-game screenshots of two characters' - you can see that they, like pretty much all characters, have MG forms listed under "魔法少女" (Mahou Shoujo, Magical Girl).
For some stats - this search: tamaki_iroha solo has 54% of posts also tagged as Magical Girl. And I keep that tag in good shape for Magia Record (if you can excuse canon-tagging for characters like Izumi Kanagi or Kureha Yuna).
Basically what I'm asking is - should I go ahead and create character tags like tamaki iroha (magical girl)? And if yes - Magia Record-only or all of Madoka?
And on that note - since chartag pairs like Sailor Moon and Tsukino Usagi, or Cure Black and Misumi Nagisa do not imply each other, should those?
(Though this still does not solve the problem of "I want to see characters from the series, transformed, though I don't care exactly which ones", unless we decide to create a non-traditional Magical Girl or something. And then decide which characters fall under that.)