Eternity

Eternity is one of Marvel's most awe-inspiring cosmic entities, a living embodiment of all time and space in the universe. Debuting in Strange Tales #138 in 1965, the character was conjured from the visionary minds of Stan Lee and Steve Ditko during their legendary run on Doctor Strange. That first appearance is a grail-level Bronze Age book for cosmic Marvel collectors, marking the moment the publisher signaled it was willing to think bigger than any superhero — introducing a concept that was literally the universe itself made manifest. Copies in high grade are increasingly difficult to find and remain a centerpiece of any serious Strange Tales collection.

As a near-omnipotent abstract entity, Eternity possesses virtually every power imaginable — reality manipulation, time control, dimensional travel, cosmic awareness, and far beyond — making him one of the most powerful beings in all of Marvel continuity. He exists alongside counterparts like Infinity and in opposition to forces such as Thanos and the Living Tribunal, placing him at the center of Marvel's grandest cosmic storylines. His role in the Infinity Gauntlet saga cemented his importance to collectors, as that series remains one of the most sought-after runs in modern comics history. He also features prominently in Jonathan Hickman's sweeping Avengers and New Avengers run, as well as the Secret Wars event, where the very structure of Marvel's multiverse was dismantled and rebuilt.

Eternity's alias Multi-Eternity reflects his expansion into representing not just one universe but the entire Marvel Multiverse, a development that elevated his cosmic significance even further. He is a key figure in stories dealing with the Seventh Cosmos and the history of creation itself, appearing in Donny Cates' Thanos and Silver Surfer: Black runs, both of which are highly collectible. His ties to Doctor Strange mean he recurs throughout magical and cosmic crossovers alike, giving collectors multiple entry points across decades of Marvel history.

For collectors, Eternity represents the best of what Marvel cosmic has to offer — high concept storytelling, stunning visuals, and a character whose appearances consistently arrive in landmark issues. Strange Tales #138 is the trophy key, but savvy collectors also chase his major spotlight moments in Infinity Gauntlet, Captain Marvel, and Hickman-era Avengers. As Marvel continues to push cosmic storytelling through films and comics alike, Eternity's profile — and the value of his key books — shows no signs of fading.