Jeanne d'Arc is a playable dragon in Dragalia Lost.
A merciful, eternal knight about whom legends abound, she takes the form of a young maiden. She's said to appear whenever people are suffering—be it from corrupt government or fiend invasions—and lead them to salvation.
Official Description (Dragonyule Jeanne)
Jeanne d'Arc has donned a beautiful dress for Dragonyule. She acts embarrassed to wear it, but deep down enjoys doing so. Despite her new attire, she hasn't lost her high-minded spirit, and watches over everyone as they enjoy the holiday.