The Third 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 Third Book, which is a treatise on entities of the air. It improves spells related to flight and speed. You increase by 10 the speed of any creature targeted by a spell granting flight or increasing speed. When you cast a spell to conjure or control a creature, that creature takes a -1 penalty on saves to resist the spell. You gain a +2 bonus to Insight and Religion. You make any knowledge- or research-based skill check involving flight, air (or similar) elementals, and/or djinnis with Advantage. Add 1 to all future Wisdom saves for this item.