Fulgur is the third secret boss in Circle of Blood. He is a thunder elemental.
Fulgur will shoot a thunder beam around the field while teleporting. He can twirl his sword around, and do a thunder charge. He can also summon a lightning bolt, lightning downward beam, and later, an explosion. Fulgur has 4000 HP, and his theme is Elemental Tactician.
He is now the second elemental boss. He has electric attacks of Ignis. He has 4000 HP, along with Ignis.
Sonata of BloodEdit
Everything remains the same as in Circle of Blood, but his theme is Judgement's Elemental Tactician, and he has 5000 HP.