Entries in the Items section of the codex. These entries are generally obtained when the relevant item first appears in your inventory. For items that are only sold at a vendor it is possible to buy them item then sell it back in the same transaction for zero net change in gold and still unlock the codex entry for the item.
Adralla of Vyrantium dedicated her life to the study of blood magic—the academic study, rather than the practice. A deeply pious mage, she was renowned in her day for having found a counter to every form of mind control, a defense against dream walkers, and even counter-spells to demonic summons.
Her efforts went unappreciated in her native Tevinter, however. After three different magisters attempted to have her killed, she fled the country, choosing to take refuge in the land of Blessed Andraste's birth. She spent the remainder of her days with the Circle in Ferelden.
The Litany of Adralla disrupts the casting of mind control spells. Use the Litany whenever a creature tries to dominate another with magic, and it will interrupt the casting. Once the spell is in effect and a character is under a blood mage's power, it is too late.
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