Metastacia
メタスタシア
Supporting character in Bleach.
An experimental Hollow used by Sōsuke Aizen years before the start of the series. In his natural state, he exists as a six-limbed creature with a large, flame-patterned mask and a flock of tentacles on his back. When a Shinigami grabs Metastacia's tentacles, his/her Zanpakutō is destroyed; however, the power is only good once every night. Metastacia's main power is the ability to merge with Shinigami, taking over their body to use as his own. Unlike human possession (two souls in one body), the fusing of two spirits is irreversible. After a short period, he is able to eat them from the inside-...
