Herag was already very satisfied with being able to reduce magic consumption by 31%.
The current problem lies in the fact that he has a total of nine shield spells.
Even if casting a spell only takes one second, it would still take him a full nine seconds to stack these nine shields on himself.
In real combat situations, there isn't so much time for him to slowly stack shields, with various unexpected developments likely.
He pondered for a moment and asked, "Shenlan, is there a way to cast the nine shield spells in one go?"
Herag asked with a mindset of giving it a try, as Shenlan had absorbed a lot of knowledge from the second level of the library and might solve this problem.
"Analyzing calculations in progress..."
Ten minutes later.
Shenlan: "Through analysis and calculation, it is possible to construct a central-type spell model connecting the nine shield spell models, allowing for simultaneous casting of nine shields."
