Kanora

She is a pretty skilled Earthbender and Waterbender. She is only of the only people in existence to have ever been able to bend two elements that wasn't an avatar. She is blind. Her mom was a waterbender and her dad was an earthbender. She was orphaned by the fire nation when her parents were taken. She caught the attention of Team avatar who startes following her to try get her to join their team. They noticed a few fire nation soliders sneaking up on her in the dark.