1-Catarina Devon, known as the “Crescent Moon Hunter”, is currently one of the Ten Titanic Captains, and the captain of the Sixth Ship of the Blackbeard Pirates.
2-The name “Crescent Moon Hunter” has become feared by women all across the world, as Catarina hunts for women she finds beautiful and decapitates their heads to add them to her personal collection. She declares this a pursuit of beauty.
3-Catarina Devon is Impel Down’s only named female prisoner who appeared in the manga so far.
4-She is stated to be the most dangerous female pirate in history. She is one of the four to survive the battle royale Blackbeard held among the Level 6 prisoners of Impel Down who themselves were the strongest criminals to be imprisoned.
5-Devon is the first known female Mythical Zoan user. She ate the Inu Inu no Mi, Model: Kyubi no Kitsune, a Mythical Zoan-type Devil Fruit that allows her to transform into a nine-tailed fox. With this power, she can transform into clones of people similar to the Mane Mane no Mi.
6-According to the One Piece Green: Secret Pieces databook, the Blackbeard Pirates were originally supposed to have a fox-woman crewmate known as Kitsune. Part of this concept might have been salvaged by Devon having the Inu Inu no Mi, Model: Kyubi no Kitsune, which turns her into a literal kitsune.
7-Little is known about her personality as to date. She has a sadistic side, as seen when she mocked Gekko Moriah over the death of his subordinate Absalom who she masqueraded as to give Moriah a false sense of hope.
8-Oda revealed that Devon must have been originally a far younger and more attractive swordswoman of Blackbeard’s crew.
In an SBS, he stated that he took out the beauty because the Blackbeard Pirates have a “more pirate-like” theme: huge, rough, and vulgar. A beauty would just ruin the mood if she existed.