Force Fair Duel! I Become a Monster Harvester

The world is gamified. The good-for-nothing protagonist awakens hidden skills and can force the target to have a "fair duel" with him! No matter what level the target is, as long as it is locked, it will become useless in a second! From then on, the boss of the world became a leek, and the number of gold coins and artifacts was overwhelming! The villain wants to show off? A slap in the face in minutes! An enemy country invades the border? Come and demolish the ancestral temple! The protagonist not only wants to counterattack, but also leads the Dragon Kingdom to bring peace to the troubled times and unify the world!