what if we make a crossover of arcane and atla.
We'll start from the beginning, yn was a mage, enforcers killed her parents. Vander found her on the street, wearing rags, cold and scared. He took yn in, gave her what he could. Yn taught herself how to make clothes. Yn didn't have control over her powers and when it got bad, Vander was there to comfort her because she gets a panic attack when it happens. I can see him giving yn a makeshift necklace so if he not around and she's overwhelmed, she can look to the necklace for comfort (she never took it off). Yn is able to make plants grow where they usually wouldn't (I'll list her abilities that I have in mind ), she wants to be able to control her powers so that she can grow food in the undercity to feed her love ones. Yn likes to sing the song "dear friend across the river." I see yn somehow traveling to the atla world. Yn tell the avatar gang about her past and home. About her adopted father and siblings (maybe they get to meet them). About how things are at her home. Yn can't help, but see similarities between her new friends and family. Yn still couldn't fully control her powers when meeting team avatar. Maybe she met them from the very beginning. Something weird happened, and the next thing she knew, she was at the South water tribe before sokka and katara found aang. Yn has an abnormal hair color (which sometimes floats when using her powers), the gaang fond it strange and beautiful (you can choose the color or colors). Maybe the gaang help yn learn how to control her powers more. I see aang teaching yn meditation to help with panic attacks. In my mind yn sleeps in a giant flower. I can see some characters comparing the enforcers to the fire nation. Maybe team avatar gets to go to their friend's home.
Yn's powers (some could be similar to bending): plant manipulation (mentioned above ), healing (her hands would glow gold), electricity manipulation, telepathic (she can use this to make instruments), element manipulation, and force fields. Yn doesn't know all of her powers so as she grows, there's almost always something to learn.












