For Jiang Li, the Sky Desolate Halberd had always lacked a presence. He had a good weapon, but no worthy opponent. As a result, the Halberd was always in a somewhat awkward position; it didn't matter whether he used it or not.
The last time he used it was during the activation of other Immortal Artifacts by the Yin Yang Heaven Seal.
That time, he used the Sky Desolate Halberd just in case, for combat. Later, Jiang Li reflected that even if he didn't use the Halberd, he could have quelled the rebellion of the Immortal Artifacts all the same.
Thinking about it this way, using it as the array eye of the Kyushu Guardian Formation was the best choice.
"I'm sorry, I'll definitely go and visit when I have time." Jiang Li felt guilty, and quickly put the matter with the Sky Desolate Halberd aside.
What more do you want from me after I've apologized?