League of Legends needs to purchase a name change card to change your name.
First enter the League of Legends game. Find the mall button in the upper right corner of League of Legends and click to open it. In the mall, you can see two icons next to the coupons. The second one is called the account. When you open the account, you can see the name change card. The name change card sells for 4,900 coupons. , click to purchase to change your name using the name change card.
You can also change your name by purchasing a name change card in the League of Legends Dao Ju City.