The Codex of Classes was one of the most miraculous artifacts in the world of the Apocalypse.
The five great Codices of Classes were the Codex of the Assassin, Mage, Cleric, Archer, and Warrior.
These five Codices were the origin of all combat classes.
For example, combat classes such as Summoner and Beast Tamer had likewise evolved from the Codex of the Assassin and the Codex of the Archer.
Moreover, the Apocalypse had one absolute rule: a player could possess only one primary class.
But if someone were to obtain a Codex of Classes, they could unlock an entirely new primary class.
And as it happened, John had already plundered a vast number of talents from other players.
Aside from the Assassin class, the number of S-rank talents he possessed from other classes was already terrifying.
Yet because he had only the Assassin as his sole primary class, he could not use the skills of those other classes. For instance, he was unable to cast Mage skills at all.
