For some reason, all the Writ of Challenge movesets for at least gym leaders and elite 4 members (I dunno about regular trainers, I dunno if there are regular trainers, I've never played XY) are just level-up moves. Same with Maxie. Maxie also had level-up moves in the original, but I dunno, I feel like that's not something worth referencing in a remake, if indeed it was an intentional reference.