"League of Legends" (referred to as lol) is a hero battle MOBA competitive online game developed by Riot Games in the United States and operated by Tencent Games in mainland China. During testing in the United States, in addition to strategic elements such as a matching system, talent system, and runes, "League of Legends" also provided a team combat system. Players can select different heroes to form an exclusive team and participate in competitive matches in the League of Legends. The game adopts the Q version of the painting style to bring players a pleasant visual experience. There are many heroes with different backgrounds in the game, and each hero has a unique story. These background stories are also integrated into the game.