In the Kingdom Come series, Magog, who was once Superman's sidekick, plays a crucial role as a "Gateway" required for a summoning. His ultimate fate and redemption arc are triggered in the prequel story, Batman/Superman: World's Finest. Magog's downfall becomes necessary for the return of Superman and the salvation of Earth-22 in the Kingdom Come series. Here's an image depicting Superman looking sad in the Kingdom Come artwork by Alex Ross: 
One of Superman's well-known adversaries, Magog, has a hidden significance behind his unusual codename, and it completely alters his connection to Kal-El. In the prequel story to Kingdom Come, found in Batman/Superman: World's Finest, Magog is revealed to be a "Gateway" required for a summoning. This revelation sets the stage for Magog's ultimate fate and redemption arc. The downfall of Magog becomes crucial for the return of Superman and the salvation of Earth-22 in the Kingdom Come series.
Superman, being DC Comics' most iconic hero, has faced numerous infamous rivals who challenge him physically, mentally, and philosophically. One of the most impactful adversaries is Magog, the antihero known for his role in Kingdom Come. Recently, Magog's creator shed light on his true nature and his relationship with Superman.
In Batman/Superman: World's Finest #23 by Mark Waid and Dan Mora, the ancient force called Gog prepares Magog, formerly known as Boy Thunder and later Thunderman, for what he refers to as the Summoning. Gog tells David, "In my language, your name means 'Gateway.' For that is, indeed, what you are."
This revelation indicates that Gog sees Magog as the crucial link needed to carry out the Summoning across multiple universes. However, this hidden meaning also ties into the overarching themes present in Magog's story. Ultimately, Magog becomes the primary driving force behind the events of Kingdom Come.
DC Comics has confirmed the official origin of Superman's symbol, which is a significant win for fans of the DC Extended Universe (DCEU). Superman's iconic shield, representing the House of El, has a rich history predating its arrival on Earth.
In summary, Magog, Superman's enemy, holds the key to the Kingdom Come storyline, serving as a gateway for a summoning that impacts the fate of Superman and Earth-22.
In the iconic Elseworlds series Kingdom Come, Magog's reckless actions result in the destruction of a large part of the American Midwest and countless deaths. This leads to Superman coming out of retirement to save-22. David Sikela, the instigator behind these events, serves as both cause of Earth-22's near damnation and its eventual salvation through Superman's return. any costs involved, Earth-22 is better off with Superman and the Justice League back.
consequences of Gog's gifts are explored further in "Thy Kingdom Come," a follow-up story to Kingdom Come by Geoff Johns, Daleham, and others. This prequel story sheds light on Magog's ultimate fate and serves as trigger for his redemption arc. The storyline "Return to Kingdom Come" begins in Batman/Superman: World's Finest #20 by Mark Waid and Mora.
Given the significance of Kingdom Come DC Comics' history, it is unlikely that Magog will change his destiny or alter the course of his Earth's Superman. However, it is evident that David Sikela corrupted by Gog played a crucial role in his downfall as well as his eventual redemption. Magog served as gateway needed for Superman's return.
You can find Batman/Superman: World’sest #23 available now from DC Comics.
Sure, here's a possible rewrite:
The 2022 issue of "Batman/Superman: World's Finest" (number 23) features Mark Waid as the writer, Dan Mora as the artist, Tamra Bonvillain as the colorist, Steve Wands as the letterer, and Dan Mora as the cover artist.