Adventures of Superman Annual (1987-) #2

Featuring the meeting of the Man of Steel and the son of Brainiac, as L.E.G.I.O.N. '90's Vril Dox comes to Earth to exact his revenge against his hated father. And if Superman wants to prevent that from happening, he's going to have to get through Vril's bodyguard...a Daxamite as powerful as himself. Continued in L.E.G.I.O.N. (1989) ANNUAL #1.