Check Out Blood-Themed Spells, Items, and Subclasses in NAMEIA'S CRIMSON TOME
Stratos Fotakis recently released a brand new Dungeons & Dragons supplement titled Nameia’s Crimson Tome. This supplement adds a few things to offer including a new subclass for each of the official classes (minus the Artificer), 25 new spells themed in blood, rules and spells for collective ritual casting, 15 new magic items, 27 monsters, 22 NPCs, and plenty of lore about the Crimson Order. Collective ritual casting is a cool mechanic where multiple spellcasters can team up to cast more powerful rituals.
You can purchase Nameia’s Crimson Tome via DMs Guild for $11.95.