Suzumushi Nishiki: Benihikō

is a technique of Kaname Tōsen's Zanpakutō, Suzumushi.

Definition
As Suzumushi vibrates momentarily, Tōsen moves his sword around himself in a semi-circle as a trail appears from the sword's path. This trail turns into hundreds of blades which rain down upon Tōsen's opponents, causing massive damage to whatever they hit.