Weapon classification

If you just want lots of weapons, there’s the Forged Tier.

If you want a slightly better weapon, there’s the Famed Blade Tier.

Weapons blessed by the spirits or the gods, Ancient Tier.

Weapons made by the gods, the God-Age Tier or the God Tier.

Alchemy and Famed Blade tiers don’t need magic power. But making weapons starting from the Artifact Tier are quite difficult, so in order to make borrowing the power of the spirits easier, Spirit Characters (Spell) or God-Age/Ancient Characters (Spell) are engraved into them. If more power is desire, then sealing a spirit or a god inside the weapon becomes a necessity.

A god or a spirit can also naturally possess a weapon after using one time for a long time.