500 pages meant that he could copy 500 level 1 spells, 250 level 2 spells, 166 level 3 spells, and 125 level 4 spells.
The majority of ordinary mages wouldn't be able to finish copying 500 pages of Orrin's magic crystal even if they spent their entire lives.
Not to mention that the Orrin's magic crystal in Zhao Xu's hand didn't even look like it weighed half a catty, and it was about the size of two normal apples. The five normal 100-page spellbooks would weigh about 15 catties.
Without a dimensional bag, it would be a burden for a normal wizard to carry it on their back, not to mention actually preparing a spellbook, which would require them to flip through all sorts of things.
How could it be as convenient as holding an Olin's magic crystal!
Furthermore, this involved a deeper level of interest!
Copying spells would cause the spellbook to lose its spells, so he often had to pray to the goddess and offer 50 gold coins per page, similar to " buying insurance.
