Zuke is the evil-Zeke created from a botched cloning operation. If you read the old
This Just Ins, you'll see his story unfold:
Issue 13,
Issue 19, and
Issue 20. Issue 19 also came with a modified front page due to Zuke's takeover (or because it was April 1, depending on who you believe).
I don't suppose you have that 6MV front page archived anywhere for posterity, do you, Zeke?