Bounts
The Bounts are a group of humans with special abilities. They are the main antagonists during the series' anime-exclusive Bount and Bount Assault on Soul Society arcs. The Bounts live by consuming human souls, which potentially gives them everlasting youth; according to Kisuke Urahara, they have historically been known as vampires. Like Soul Reapers, they each have a unique weapon known as a doll, a familiar equivalent to the Soul Reaper zanpakutō. Like a zanpakutō, a doll is its creator's power given physical form. However, instead of taking the form of actual weapons like zanpakutō do, dolls are mostly self-sufficient creatures when released, although they tend to be used as weapons in various ways such as a large battleaxe or a snake, as a sword and whip. " noting that the bittō in particular were like "something straight out of a bad sci-fi movie," but admitted they were "decent plot devices" to develop the other characters.