This is a posable action figure from the Nendoroid series.
From Good Smile Company:
From the popular game "Fate/EXTRA" comes a rerelease of the Nendoroid of the 'good wife' with a foxy appearance - Caster! She comes with three face plates including a smiling face, a combat expression and a winking expression.
Optional parts includes the 'Eightfold Blessing of Amaterasu' mirror as well as the charms she uses for her skills. She also comes with hands shaped like foxes for a rather cute pose, as well as parts to recreate her 'Charm: Gyokutenhou' skill. Kneeling parts for a more relaxed appearance are also included! Be sure to enjoy the adorable Nendoroid Caster in your collection!