The Game Master Companion 5e is a mobile-friendly tool that enables GMs to handle quickly and comprehensively common rules-complex situations in a D&D session, such as combat, searching for secret doors, and disabling traps. The core rules of Wizards of the Coast's System Reference Document 5.1 (SRD) are reorganized by task. Users are sometimes directed to official sourcebooks for more information.

    PHB = Players Handbook

    DMG = Dungeon Master's Guide

    MM = Monster Manual

    XGtE = Xanathar's Guide to Everything

    TCoE = Tasha's Cauldron of Everything

    SAC = Sage Advice Compendium

Also, interpretations of Jeremy Crawford (JC) are referenced, and infrequently a rule interpretation, comment, or house rule is offered. Welcome  and enjoy.