- Player’s Handbook
- Monster Manual
- Dungeon Master’s Guide
There are other, smaller discounts on most of the other content and digital dice, too. The exceptions are the two recent releases, Bigby Presents: Glory of the Giants and Phandelver and Below: The Shattered Obelisk.
Note that the sale prices are not available in the D&D Beyond App. To get the discounts you must purchase from the web site.