Wonder Woman, Vol. 2 #24 (1988)

Combat Zone
Having stole Hermes' power, Phobos releases Ixion, the first and greatest mass murderer ever. Powerless to stop them, Hermes is forced to watch as Ixion goes on a rampage of destruction and death in the city of Boston. Using what little power he has left, Hermes is able to call out to Diana. With Wonder Woman's help, the destruction is stoped. Meanwhile, Etta Candy stumbles upon a coded message from space which seems to be the first signs of an all out invasion of earth.
Release Date: 1988