Tactical maps are a necessity for the deadly combat encounters in this book. Whether it is the Firefinger tower or the Fane of the Night Serpent, the terrain matters. Searching for the Tomb of Annihilation PDF often yields high-quality map extractions. These are perfect for printing or using on VTTs. The maps show elevation, cover, and hazards like lava or spikes. The digital assets allow the DM to understand the line of sight and movement restrictions, which is crucial when the enemies are intelligent and using the terrain against the heroes.