The Seventh Book of Hsan

The Seven Cryptical Books of Hsan are ancient scrolls penned by Hsan the Greater over two thousand years ago. Each book has a different topic and contains discussions and instructions to execute spells and rituals related to that topic. You have successfully researched the Seventh Book, which is devoted to the study of dark outer gods and fiends. You add 2 to attack rolls, damage rolls, spell DC, and saving throws against Fiends. You gain a +4 bonus to Religion. You make any knowledge- or research-based skill check involving fiends with Advantage.Add 1 to all future Wisdom saves for this item.