The appearance of characters can be customized through skins unlocked during battles, some of which have unique visual effects. For example, some skins will attach flame trajectories when the character attacks, while others will leave red footprints when the character moves. These skins can not only change the appearance of the character, but also make the player more recognizable in battles. At the same time, some rare skins also come with slight attribute bonuses, such as increasing attack speed or health limit by a small amount.