- X-23 was originally confirmed at New York Comic-Con on October 13, 2012.
- X-23 was introduced on February 15, 2013, as the Adamantium League reward for the 5th season PVP Tournament.
- X-23 used to have different background colors for her ability icons.
- X-23 has at least two themed weapons, the and .
- Made For Walking
- Description is a reference to the song These Boots Are Made For Walkin' by Nancy Sinatra.