Spell Breaker is a unique Dwarven Tower Shield in The Elder Scrolls II: Daggerfall. Aside from its historic importance dating from the Battle of Rourken-Shalidor, the Spell Breaker protects its wielder almost completely from any spellcaster, either by dispelling magicks or silencing any mage about to cast a spell. It is said that the Breaker still searches for its original owner, and will not remain the property of any one else for long. For most, possessing Spell Breaker for any time is power enough.
The Hero of Daggerfall must summon Peryite on the 9th of Rain's Hand to start the quest. After speaking to Peryite he appoints you to a radiant dungeon to kill an Ancient Vampire. Following that he appoints you to a radiant town in the region, where you will meet his worshipper and receive the shield.