Ruleset Types and What They Mean

The rule set decides the default swap, ritual casting, and Show Cantrips values for each spellcasting class. Set the world rule set with Default Spellcasting Rules in module settings. Override it per actor with Rule Set Override in Spell Book Settings.

A class’s defaults are saved the first time Spell Book Settings opens with that class on the actor. Changing the rule set afterward does not update those classes. Edit their fields in Spell Book Settings instead.

Class defaults by rule set

Legacy follows the 2014 rules. Modern follows the 2024 rules.

Class	Rule Set	Spell Swap	Cantrip Swap	Ritual Casting	Show Cantrips
Artificer	Legacy	Long Rest	None	None	Yes
Artificer	Modern	Long Rest	Level Up	None	Yes
Bard	Legacy	Level Up	None	Prepared	Yes
Bard	Modern	Level Up	Level Up	None	Yes
Cleric	Legacy	Long Rest	None	Prepared	Yes
Cleric	Modern	Long Rest	Level Up	None	Yes
Druid	Legacy	Long Rest	None	Prepared	Yes
Druid	Modern	Long Rest	Level Up	None	Yes
Paladin	Legacy	Long Rest	None	None	No
Paladin	Modern	Long Rest	None	None	No
Ranger	Legacy	Level Up	None	None	No
Ranger	Modern	Long Rest	None	None	No
Sorcerer	Legacy	Level Up	None	None	Yes
Sorcerer	Modern	Level Up	Level Up	None	Yes
Warlock	Legacy	Level Up	None	None	Yes
Warlock	Modern	Level Up	Level Up	None	Yes
Wizard	Legacy	Long Rest	None	Always	Yes
Wizard	Modern	Long Rest	Long Rest	Always	Yes
Other class	Legacy	Level Up	None	None	Yes
Other class	Modern	Level Up	Level Up	None	Yes

Swap modes

Spell swapping and cantrip swapping each use No Swapping, On Level Up, or On Long Rest. Swap modes do not block preparation changes. A player can prepare or unprepare spells at any time. After a long rest, a class set to On Long Rest triggers a prompt to open the Spell Book unless Disable Long Rest Swap Prompt is on.

Ritual casting modes

Mode	Behavior
No Ritual Casting	The module adds no ritual versions of the class’s spells.
Cast Rituals Only If Prepared	Prepared ritual spells can also be cast as rituals.
Cast Any Known Ritual	Any ritual spell available to the class can be cast as a ritual without being prepared.

For both ritual modes, saving in the Spell Book adds a separate ritual copy of each eligible spell to the actor.