After the notable showcasing Wilford did in front of Lucas, Lucas wasn't content with just enabling him to create a basic array formation. After weeks of theoretical study, he is now faced with the implementation of the theories, which raises the question of whether they will be usable.
From plenty of books he memorized, Lucas started understanding each of them as he passed through trials of studies of the array. For months of undisturbed training, Lucas finally had the halves of his array formation. Although he already had a formula for it, it wasn't as successful as he thought it would be.
He realized that unique Qi is much more complicated to formulate and that some ingredients are needed aside from spirit jewels or the cultivation technique he knew.
He sighed at every line and every character he experimented with. There weren't any nights that he didn't drain his energy just for the sake of activating the prototypes he made.