Dawnbreaker is a deadric item given to the player after finishing the quest break of dawn
Dawnbreaker deals 10 points of fire damage with every hit and when used on undead there is a chance it will cause an explosion which will burn and turn nearby undead. It can be tempered using ebony ingots.
Dawnbreaker is a good weapon against vampires as they are classified as undead
Dawnbreaker will also effect the player if they are a vampire