Excerpts from the Tome of Light and Darkness(7 Days)(Non-tradable)

Cannot trade.

Increase Armor Piercing Value by 5.
Increase all stats by 15%.
Increase damage dealt by 5%.
Reduce damage taken by 5%.
When attacking, there is a chance to apply "Mark of Light and Darkness" to the target, increasing damage taken from Holy Light, Dark attributes, and physical abilities by 10% for 5 seconds. Can be triggered once every 10 seconds.
When attacking, grant surrounding allies, excluding oneself, "Law of Chaos", increasing all stats by 10%, Armor Piercing Value by 3, and Penetration by 1% for 5 seconds. Can be triggered once every 10 seconds. Cannot stack with "Explosive Chaos".
When attacking, gain the "Explosive Chaos" state, increasing Penetration by 1%, Holy Light and Dark attribute skill damage by 15%, and reducing damage taken from Holy Light and Dark attributes by 10% for 10 seconds.
While in the "Explosive Chaos" state, when attacking a target with the "Mark of Light and Darkness" status, additionally reduce the five basic abilities, except for HP, by 15% and HP by 7% for 5 seconds. Can be triggered once every 10 seconds.