This companion includes a number of new elements to introduce into your 5.5e-compatible tabletop roleplaying game, inspired by the lore of Greenhearth Necromancer and to help get you excited for the videogame and the deep narratives you will explore while you raise your undead garden. In these pages you will find two new subclasses (for druid and wizard), three new spells, three new potions, and two creatures, including one that can be used as a familiar.