Tome of the High Sybarite

Increases stamina reduction by 5 and Final Damage by 9% upon entering Vanguard Defense and Azmothian Guardians. Final Damage is applied based on the cumulative effect of all chasm items.
A tome warm with a sickening heat, as if it were a living thing. As you take it in your hands, you can see the glories of lost Azmoth, its rioting gardens and unfathomable sorceries... and the blood soaked into its stones. Look at the ruin around you, hero. And remember that all greed has its price.