Usually when a scroll is used in a match, it’s unequipped and you would have to go back to the lobby and then requeue. Since the process is a little inconvient when you want to requeue right after a match and equip a scroll, I suggest adding an inventory or scrolls button at the ending scene, next to the rejoin queue button. It will make playing the game much easier and convinent to play, espcially in a party.
or it can be changed/bought at the map voting, like someone else suggested