Opus Daemonium
Opus Daemoniums are items that allow a Player to activate or deactivate Requiemâs death mechanics, by respectively awakening or destroying a Playerâs demon.
There are 4 variants of Opus Daemoniums: Neutral, Curse, Cure, and Banishment.
Those books can only be used while in a regular playerâs body, with one exception: if used while possessing a mob and after having started a curing process (with weakness potion and a golden apple), they will expedite the process and turn the player into the desired type.
In the Requiem 2.0 version (1.17 and above), the Opus Daemonium has been replaced with the Morticianâs Conversion Trade.
Variants
Neutral 
Neutral Opus Daemoniums are the base to obtain the other variants. Using one allows a Player to write a phrase inside it. If the phrase is correct, the book can be signed in exchange for 5 experience levels, and converted into one of the two variants, depending on the content written.
Curse 
Curse Opus Daemoniums allow a Player to wake their demon. Therefore, when used, they activate the modâs death mechanics.
To convert a Neutral Opus Daemonium into a Curse one, one must write âAd vitam aeternamâ inside it and sign it.
Cure 
Cure Opus Daemoniums allow a Player to destroy their demon. Therefore, when used, they deactivate the modâs death mechanics.
To convert a Neutral Opus Daemonium into a Cure one, one must write âAd vitam mortaleâ inside it and sign it.
Banishment 
Banishment Opus Daemoniums allow a Player to cast aside their physical appearance and become a Wandering Spirit.
To convert a Neutral Opus Daemonium into a Banishment one, one must write âAd vitam vagrateâ inside it and sign it.
Recipe