>>7950305In cartoon canon she comes out of nowhere with an Earth alt mode.
But in the Marvel comics, she was a member of the Female Autobot Commandos. So she actually should be another Moonracer retool for her Cybertronian mode. Preferably she should incorporate into Orthia though, so probably closer to her Earth form so she could turn into a shield or something.
Otherwise just come up with something. I don’t know if IDW gave her a pre-Earth alt mode.