yes, it is cis man. i don't think it's a worse hero than biological woman. i mean, really, your superpower is that you're not mechanical? pfft.

mind that i am also just an ally so take it with a grain of salt as i may make mistakes here but here's what i know:

biological woman is just not a thing because woman is a social term, not a biological one to begin with. also has a slight undertone of "biological" meaning "real" which we wouldn't want to perpetuate.

the technically correct term would probably be "female", but I don't think trans men would like to be called either.

afab / amab (assigned female/male at birth) is more acceptable if needed. so, if a woman is afab she's cis. if she's not, then she's trans.

just keep in mind that trans isn't limited to women amab and men afab, as not only is gender a spectrum, but "biological sex" is too. anyway trans is more broad because it basically means your gender being anything different from what's typically associated with your assigned sex at birth.

any trans people want to correct me on anything please do so