Levi realized he did not need Undead Summoning for the time being since he already had the level 7 Seal of Hell. At the highest level of Undead Summoning, he could summon two first-circle hell creatures in battle, such as two Hell Strongmen. They would be of little help to Levi.
Sacred Insect Touch was different. Since it was a First-Ring Spell, the number of Sacred Insects Levi could control with it would be much greater than that of the cantrip Insect Controlling Technique. He might be able to control up to 10,000. With the current strength of Levi's Sacred Insects, 10,000 of them attacking in full force could pose a huge threat to official wizards. The most important thing was that his Sacred Insects had growth potential. This meant that as the Sacred Insects evolved, his First-Ring Spell would become stronger in the future.
