From publisher blurb:
PUT SOME MAGIC INTO YOUR GAME!
Rassilon is a world of magic. Tendrils of magical energy emanating from the moon touch every creature, granting them the potential to weave, focus, and manipulate magic. All practitioners share an understanding of how to manipulate the threads of magic, but each arcane tradition is unique in its approach to the art.
This guidebook expands the major and minor magical traditions of Rassilon, delving deeper behind the scenes and presenting new rules.
Within this tome of arcane lore you’ll find information on druidic pacts with nature, the Magocracy’s famed schools of heahwisardry, the elementals planes and their unearthly occupants, the nature of the lost dwarven runes, song mages’ storytelling traditions, and more!