Publisher's blurb:
The Mega Index offers 5 detailed, revised, combined, and thematic indexes:
1) PHB, DMG, and MM (The "Ultimate Index" - our first index on the DMs Guild, revised and augmented!)
2) PHB, DMG, MM, and XGTE (The Mega Index 4)
3) PHB, DMG, MM, XGTE, and MTOF (The Mega Index 5)
4) PHB, DMG, MM, XGTE, MTOF, and VGTM (The Mega Index 6)
5) PHB, DMG, MM, XGTE, MTOF, VGTM, and SCAG (The Mega Index 7)
Limited cross-references : quickly find what you’re looking for; very useful for DMs, content creators, and the designated rules person at the table
References selected magic items, monsters, spells, traits, and special abilities
Intuitive thematic indexing (rather than strictly alphabetical)
Indexes Sage Advice Compendium official rulings (v 2.3) with a selection of relevant Sage Advice excerpts
Appendix A lists optional/variant rules found in the official books (with useful checkboxes for the DM)
Appendix B lists numerous Sage Advice rulings about illusions (how to adjudicate illusions)
But there's more! There are two versions of each index: a "RAW" version and a version that includes 1st, 2nd, 3rd, and 4th edition terminology (indicated as such in the index) to help you find the relevant 5th edition rules if you've played previous editions.