Blödhgarm has the fangs of a wolf, the pelt of a forest cat, and the eyes of an eagle. He has blue fur, which some women found beautiful. He also has a musk-like scent that attracted only females. His name in The Ancient Language means "Blood Wolf." He once declared to Nasuada that someday, if his perception of beauty were to change, he might turn himself into a creature of The Sea and swim away.
He is an extremely talented elven spellcaster, the leader of a group of eleven other elven spellweavers. He is shown as being faster than the rest of the group when they were in the long chamber at Galbatorix's palace and it is assumed he is stronger than them as well. His physical appearance does not lend him any additional abilities other than the use of his razor sharp fangs.
Role in the Varden Edit
He was assigned by Islanzadí, a great supporter of the Varden, to support Eragon and Saphira, along with eleven other elf spellweavers. They helped Eragon battle Murtagh and Thorn by combining their strength. Blödhgarm and the other elves acted as Eragon's bodyguards in almost every conflict he faced thereafter.
Blödhgarm survived the assault on Urû'baen. After the war, he and his surviving magicians were charged with protecting the Eldunarí and trying to heal the minds of those who had been enslaved to Galbatorix. When Eragon and Saphira decided to leave Alagaësia with the Eldunarí and the dragon eggs, Blödgharm and his spellcasters accompanied them.
Blödhgarm has a musk surrounding him that attracts females, which could be either an attempt to find a companion or simply an unanticipated side-effect. Nasuada and Elva could counter the musk by concentrating on the taste of horehound, which was apparently extremely acrid in flavor based on the memories of Nasuada from her time in Farthen Dûr. It seemed his smell had no effect on Arya. Soon after Blödhgarm arrived, Trianna placed a ward on Nasuada that protected her without her having to concentrate on horehound. Men are entirely unable to detect this odor. When Saphira pointed it out to Eragon, she had to share it with him mentally in order for him to experience it.