The double cast on 6 mages needs to be removed
4 Mystics are supposed to counter mages yet when Veigar starts with his ult thanks to Seraph's you are already 2 champs down and then on top of it come Brand, Syndra etc. It means you are facing twice the amount of champs in terms of damage while starting the game with 2-3 champs instantly dead despite of having 4 Mystics. Its beyond broken.