Cover Art of Hellblazer (1988) #1.
*There has long existed a family line of powerful magicians and shadowy operators gifted with the will and courage to expose the terrible forces that lurk undetected in shadow. Our time was to receive the greatest of these, a mage whose penetrating light could set human history on a constructive path. He was conceived a twin, a healthy fetus sharing the womb with his weaker brother. the weaker fetus, fighting for his share of nourishment, killed the great mage inside their mother's womb. Thus the hope of the world was never born... and in his place lives John Constantine. *Source: Back of card