Jōkaku Enjō

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

Description
This ability creates an immense wall of flame that surrounds the target and then forms a huge contained sphere of flame in which to imprison enemies. It is shown to be immensely powerful as it was capable of imprisoning three captain-level Shinigami (namely Aizen, Gin, and Kaname) for a significant amount of time.