The artist who was a co-creator of the second Black Spectre is primarily associated with which publisher?
Black Spectre:  The second Black Spectre is a fictional supervillain who first appeared in "Moon Knight" #25 (November 1982) and was created by writer Doug Moench and penciller Bill Sienkiewicz. Bill Sienkiewicz: Boleslav William Felix Robert Sienkiewicz ( ; born May 3, 1958), better known as Bill Sienkiewicz, is an Eisner Award-winning American artist who produces comic book art, primarily for Marvel Comics' "The New Mutants" and "".
Marvel Comics