Array formation is quite different from artifact refining.
Unlike artifact refining, array formation is much like the computer programming An Jing encountered in his past life: it is constantly undergoing iterative optimization. Its foundational technology—spirit patterns, rune threads, base structures—all evolve and improve with incredible speed.
Fuxie once claimed to be a master of sword arrays, but his knowledge was archaic. After An Jing had him and Huo Qing examine the array formation classics of the Tianyuan Realm, Fuxie abandoned any attempt to instruct An Jing, instead advising him to study on his own.
Chapter 566