Demon's Souls Wiki
Insanity Catalyst

The Insanity Catalyst is a Catalyst in Demon's Souls.


In-Game Description

A catalyst wrapped in golden cloth.
Forged from the Soul of the Demon Old Monk, it causes insanity in the wielder and drastically increases the strength of spells, but halves the wielder's maximum MP.
If you have no dreams for the future, you may want to place your trust in the power of the golden garb.


This catalyst is created by giving Blacksmith Ed the Yellow Demon's Soul (along with the Red Hot Demon's Soul) along with one of the following:


The Insanity Catalyst has easily the highest magic adjust of any of the catalysts (and the Talisman of Beasts, along with the highest scaling for the Magic stat. However, it halves available MP.

The catalyst requires fewer levels to be powerful than the Talisman of Beasts, but its halving of MP is a significant downside. Most mages will likely want to also spec into Faith to wield the Talisman of Beasts instead, which has the added bonus of allowing the player to use the Yellow Demon's Soul on strong spells like Homing Soul Arrow or Soul Thirst.