i'm doing the same so i understand. i really love your idea for her, it's so fun and unique! nate will be a recent addition to the team having just returned from adventures abroad and hired to work alongside them to help solve the mystery of (i think?) how their old leader ended up trapped in a box - and to assist in further missions as well! he's an indiana jones style adventure but the type who returns stolen magical artifacts to their original cultures/homes, and was chosen by one of said artifacts at some point in his career which helps him wield magic beyond his usual ability (which i think is just reduced to telekinesis). in the field he's a competent confident guy who can traverse all sorts of ancient ruins but get him into the city and he's a soft nerd ex librarian who can't navigate the l line. he's probably useless when it comes to fancy tech but will definitely appreciate her gadgets, even if he's more used to using some rope and magic and making it work that way. he's a bit dry but well-meaning and sweet and always prepared for the worst, nothing is a very big surprise when it all goes badly.