Secret Origins (1986 DC 2nd Series) #44

The Darknight Detective will battle the combined forces of the four Clayfaces. You can learn the origins of all four of these malleable malefactors here. 'Clayface I and Clayface IV' are by Mike W. Barr, Keith Giffen and Al Gordon. 'Clayface II' is by Dan Raspler, Bernie Mireault and Denis Rodier. And 'Clayface III' is by Len Wein, Tom Grummett and Gary Martin. Cover by Kevin Nowlan (featuring Batman).