Noah didn't need to spend much time on the Ghostly sabers spell during the two years before the attack. So, he could focus on other abilities after completing the modifications on the Mental saber spell.
Of course, he had prioritized the abilities that didn't require much "Breath", and one of them was the Will-consuming rune.
Noah had yet to create another personal rune, but he had used that time to improve the saber-shaped one that he had made in the past. His mind had become able to condense stronger emotions when it reached the fifth rank, which allowed him to create a stronger version of his first rune.
Thomas saw hundreds of small, black sabers with power in the solid stage of the fourth rank filling the ground under him.
