Jōkaku Enjō

is a technique of Genryūsai Shigekuni Yamamoto's Zanpakutō, Ryūjin Jakka.

Description
Creates an immense wall of flame, which surrounds the target(s) before forming a huge sphere of flame in which to imprison enemies. This flaming prison is immensely powerful, imprisoning three captain-level Shinigami (namely Sōsuke Aizen, Gin Ichimaru, and Kaname Tōsen) for a significant amount of time.