This Heaven-Earth Cannon resembled the super Soul Guidance Cannon that He Caitou had used before, except, its power was even more terrifying. It could only be used once a day, but the power it unleashed head-on was equivalent to a full-force strike from a level 95 Hyper Douluo.
The reason it was classified as a level 8 Soul Device rather than level 9 was primarily due to its slightly inferior material quality, which limited the number of times the Heaven-Earth Cannon could be used; hence, it could only be fired once a day. Additionally, it had a long charge time and could only target fixed objects, making it practically useless in battles of the same tier. In Princess Jiujiu's evaluation, it was a level 8 Soul Device with a level 9 core magic array.
Eventually, this Heaven-Earth Cannon was purchased by another buyer for a whopping price of seven million golden soul coins.