Akiza Izinski, originally known as Aki Izayoi in the Japanese version, is a character from Yu-Gi-Oh! 5D's, and one out of 5 of the mysterious Signers. She is known widely under the alias Black Rose, known as Black Rose Witch in the Original version.
Akiza possesses a "special power" which sets her apart from the rest of humanity, and even the rest of the Signers. This power enables her to materialize and bring to life monsters and the effects of Duel Monsters cards, even outside of basic attacks.