Funko Pop! Heroes: Justice League - Etrigan The Demon (PX Limited) (Blacklight Chase) #459Gone, gone, the form of man, Rise, the demon Etrigan! With those words, Jason Blood, an immortal knight from the court of King Arthur, tranforms into Etrigan the Demon, half brother of the wizard Merlin. Created by Jack Kirby in 1972 for DC Comics and subsequently developed by creators such as Matt Wagner, Alan Grant, Garth Ennis, and Paul Cornell, Etrigan the Demon has also appeared in animation, such as The New Batman Adventures, Justice League, and