Spell Storing Scrolls were the second more essential tools after potions a Player was trying to have with him.
Depending on the quality of the scroll, different Grades and the number of Spells could be stored in it.
But the highest the Grade of a Spell, the more space it took.
Since Mizuneko was a SCRIBE MASTER, he started on researching the way of making Spell Storing Scrolls, which was the most usual action a SCRIBE MASTER would spend his time to do.
His current ones were the results of his hard work. A few barely could handle a Base Grade Spell stored in them, and most up to four Low Grade Spells, either the same or different.
This wasn't going to affect much their future battles as the Mana Cost of Low-Grade Spells was minimal compared to Base Grade, but it was a start.