Although the third elder brother looked like a farmer, Lu Xun suspected that he was essentially a scientist at heart.
He was innovative, loved to probe into things and was also very knowledgeable.
In terms of teaching Lu Xun about formations, the third elder brother was rather earnest. Lu Xun felt like he was his tenderest cabbage, being diligently watered, loosened and weeded by him.
Lu Xun originally assumed that he was learning the most common type of Five Elements Formation across the Heavenly Dust Continent, where the five small formations are all of yellow level, and the large formation is only of blue level.
This formation was not mysterious and belonged to a relatively low-level formation. Even if it was reasonably deployed by five people, gathering the Five Elements, the power it could exert would be only slightly stronger.
But in any case, it was indeed very suitable for Lu Xun's current situation.