Marty Pasko introduced the character of Nam-Ek in a World of Krypton tale for SUPERMAN 282--which at the end has Supergirl ask Superman how he knows so much about this character. Then Pasko brings Nam-Ek back in the four-parter for SUPERMAN 311 to 314, plus he brings back Amalak, who has now become the Kryptonian Killer (which was formerly another character) and there's also the matter of New Krypton which Superman created in 255 (by Bates) that contained all the Kryptonite in the universe yet must have blown apart because Kryptonite shows up again in Pasko's run. Presumably, Marty was going to tie all these loose ends up (Nam-Ek, Amalak, Kryptonite), but he ran out of pages to do so in 314.