Without the help of the Magic Power Concentration Array, it would be crazy for someone to try to advance to the rank of Supreme Mage by condensing spiritual power to magic power. It would be like advancing to a Demon Fighter from a Level 10 Warrior without using the Warrior Energy Concentration Array.
Even though Qian Jin couldn’t train and improve his spiritual power, he knew that if Gloria failed this advancement, she would fall from the peak of a Level 10 Mage to a Level 9 Mage. She would have to retrain to become a Level 10 Mage before she could try to advance again.
This was the reason why a lot of Level 10 Mages who weren’t members of big families would go and try to become retainers of big families or the royal family or join the Mage Union.