Jack Kirby, often referred to as "The King of Comics," who assisted or single-handledly created most of Marvel's staple characters, came in and left the DC universe with a wonderful smattering of characters during a time that many consider to be him at his peak. One of these odd little characters was the Demon, Etrigan. An odd little turn around on a Jekyl and Hyde scenario, the Demon was actually a cruel meddling of the wizard Merlin in a last ditch effort at Camelot. And the he leaped into the present day. The DC Universe has had many other characters running around the Medieval times, and so its appropriate that someone would want to put a band together...
An aspect of the character that I've always liked is the other side to the coin. I mentioned Jekyl and Hyde earlier, and while Etrigan may represent the Hyde side, the Jekyl, Jason Blood, is no slouch. A childhood friend of Merlin's, he is an immortal mage, forever tied to his destiny of chains with the demon. He is often ruthless, which may be the influence on his back. But the modern Blood is less active, he is reclusive, resigned to his position (most often, anyway). So I am interested to see how this plays with the demon being a more recent inhabitant.