Excalibur was one of the Great Old Ones, embodying the madness of wrath. As such, he spent considerable time with his fellow Great Old Ones, including Death, Asura, Vajra, Eibon, and the Great Old One of Power. Legends surround Excalibur, referring to his many powers. How accurate Excalibur's own accounts are is subject to debate, especially as it was Excalibur who has written many of his supposed exploits in a book available at the DWMA library.