There's a theory going round that Boldir's a secret surviving limeblood because her horns and card background are the wrong colour for an olive, her teeth aren't a standard shape, and she knows about Doc Scratch. I'm wondering if she might not even be a troll. I don't think she's a human or cherub but there have been comments about other alien races conquered by the trolls...
All of the cards are kind of color-divergent, I did a study of the color sand came to the conclusion their colors aren’t set in stone for each caste, they sorta vary from case to case and, as we know from Lanque, the team even made a few mistakes when choosing the cards and stuff.
That being said, we don’t KNOW that she knows about Scratch! She’s out to expose the deep-state Luancracy- We do know that this is real, Doc really pulls all the strings behind the scenes, but it’s likely she’s just going to be a conspiracy theory joke and say that like, the moon is hollow and Limebloods didn’t go extinct, they actually control the population from their secret base, also Alternia is Flat.
Also her teeth aren’t a standard shape- Have you seen Konyyl? Or Cirava. Or Vikare. Fangs and tusks of all kinds seem to just be a thing that happens.