Be careful of pedestrians and respect the speed limit. Doing mystic casters only is hard without the carry (Mod Y Ebenholz) but events like this where the event mechanic is that the map clears half of itself for you helps.
Man, your channel inspired me! I picked Iris from the 5* ticket because of you, currently leveling Ebenholz S3m3 lvl 80. Soon I'll be able to play around with this team as well, can't wait! :D