Duke Vallec furrowed his brow. As an advanced magus, the highest-level magic technique he could perform was a level 4 magic technique, but as an advanced magus at stage one, he could only use the level 4 magic technique five times. He had already used it twice. This meant he had to be able to kill the two-headed crowned crow with just two level 4 magic techniques. This would free up one-fifth of his internal mana capacity. He could then switch to using level 3 magic techniques dozens of times or level 2 magic techniques hundreds of times.
He took a deep breath. Level 4 magic techniques were essentially treasures for a kingdom or organization. The Kingdom of Valor didn't possess many level 4 magic techniques. Fortunately, Duke Vallec had purchased some single-target level 4 magic techniques from Henry to cover his deficiency, as most of his magic techniques were area-effect.
