Human weapons.
Spirit weapons.
Dao weapons.
Utmost treasures.
Lin Fan recalled the four tiers of weapons that Li Tianquan had told him about. This was interesting indeed.
In fact, all four tiers could be further divided into different grades:
Supreme grade.
Upper grade.
Middle grade.
Lower grade.
Human weapons were really normal. While they possessed all sorts of effects, they were easy to craft and could thus be considered as dead-weights.
As for spirit weapons, they should probably be something like Demon City and the likes. Demon City, in particular, had the big ancient demon who had ruled over ancient times as its core. As for Soul Devouring Beads, that could be considered a spirit weapon as well. However, it should be of a pretty low grade. Probably something of a lower grade or so.