Guild staff amps Ainz stats and abilities

The staff that had been made but never used had finally found its way into its rightful owner’s hands, in the twilight hours of Yggdrasil.
Momonga rejoiced as he saw his parameters rising rapidly, but at the same time he felt sad.

- Overlord; Vol 1; Chapter 1

[Despair Aura].
Besides inflicting a fear effect, it could reduce the stats of its victims.
Normally, it would not have an effect on the level one hundred NPCs, but on this occasion, its effects had been strengthened by the Staff of Ainz Ooal Gown.

- Overlord; Vol 1; Chapter 2