Marvel UK · October 26, 1983
2nd Appearance El Tigre; 2nd Appearance of Ramon; 2nd Appearance of Toloc; Origin of Ego the Living Planet; Collects material from X-Men (1st Series) #26 and Thor #228
X-Men: Holocaust!; Thor: Ego: Beginning and End!
Writers: Roy Thomas, Gerry Conway
Artists: Werner Roth, Rich Buckler