The units in the banner change every hour.
There is also a “Summon” button on the left side of the screen that teleport the player to the Hero Summon when clicked. It is located in the lobby across the Infinite Mode area. Most units can be obtained from this banner other than exclusive units and 6 star units. Hero Summon is an area in the lobby where players can obtain both primary and secondary characters with both gems, gold and stardust.
