As early as when he gave the scepter to Zhu, the old hooligan of Pedro told him that the scepter can only be used by one person, so that he can use it when he needs it most.

in this situation, old Zhu has no choice. He is not sure to escape from the attack range of the super forbidden spell of Kairol in such a short time. Now the only thing that can be used is the scepter.

although I don't know how the scepter came from, I think it's just a product made by some alchemist. Even if it's infused with the name of a artifact or something,...