This work includes material taken from the Double Twelve System Reference Document 1.0 (“DD12 SRD 1.0”) by Lightfish Games, available at http://lightfishgames.altervista.org/dd12, and from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC, available at https://dnd.wizards.com/resources/systems-reference-document.
The DD12 SRD 1.0 and the SRD 5.1 are both licensed under the Creative Commons Attribution 4.0 International License available at https://creativecommons.org/licenses/by/4.0/legalcode.