The next hour was a mess of all the potentials if the tower could be fixed and improved. However, Walker had a very hard tome focusing. While the mana that the tower attracted helped him replenish what he had lost, he was still tired from the fight against Greed. There were many things he had done but he had not pushed himself to learn a new magic that he still didn't fully understand. The mysteries of natural mana were nothing that Walker could interpret in just a few moments. If the sealing arts carving had not put the information in to his mind then he would not have had a hope of sealing Greed.
rare system user you say? from the tamers you say? hmmmmm