For 10 points, name this substance, with isrequired by vampires for sustenance.
In Hinduism, the Vaitarna usually contains this substance, and a demon partly named for this substancewas the companion of Sumbha and Nishumbha. In the Kalevala, this substance appearing on a comb foretoldthe death of Lemminkainen. The demon Raktavija used this substance to self-replicate, and in Norse mythit was mixed with ashes and honey to form the (*) Mead of Poetry. The giant Talos and the Olympian gods hadichor instead of this substance. A shirt covered with poison and this substance was given by Deianeira to Heracles,resulting in his death; that shirt had been tainted by the centaur Nessus. For 10 points, name this substance, with isrequired by vampires for sustenance.
In Hinduism, the Vaitarna usually contains this substance, and a demon partly named for this substancewas the companion of Sumbha and Nishumbha.
blood