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The Game Master Companion 5e lets you quickly access the various rules that come into play in common situations in a gaming session, such as engaging in combat, checking for traps, listening for enemies, scaling a wall, picking a lock, and so on.

For any of these common situations, the System Reference Document 5.1 (SRD 5.1) could have half-dozen or more rules that apply but which are located in different parts of the SRD 5.1.  (See SRD 5.1 Table of Contents) The GMC 5e groups them together. This means that the SRD 5.1 is often not presented verbatim. Citations to the SRD 5.1 are, however, provided (page numbers in parentheses). You are occasionally directed to other sources (see book abbreviations) or to an interpretation of Jeremy Crawford (JC). Once in a while my own interpretation or house rule is offered. Welcome and enjoy!

Disclaimer: This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC and available at:


The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at:

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