76. Captain Britain (and friends) vs. The Fury
The Alans, Moore and Davis, respectively, introduced the Fury in the pages of Marvel UK’s Marvel Superheroes #387 in 1982, but soon brought him over to a brand-new title called Daredevils (which was mostly designed to reprint Frank Miller’s classic Daredevil run).
The Fury is basically an unstoppable killing machine. In one of its first appearances, it wipes out the entire superhero population of an Earth (one of the many Earths of the multiverse - the “regular” Marvel Universe is 616).
Captain Britain travels to confront the Fury, and the Fury (as shown above) KILLS HIM!
That’s how tough the Fury is. Luckily, Captain Britain is revived by Merlyn and sent back to the 616 Earth.
But here’s the thing about the Fury - it always adapts to whatever it needs to do to kill someone. Well, when it senses that Captain Britain is still alive, it actually adapts itself to inter-dimensional transport!!! So it travels to Earth-616.
Captain Britain puts together a group of super-humans (the inter-dimensional mercenary group, the Special Executive) to fight the Fury.
The battle was fierce and many heroes lost their lives but the Fury was seemingly immobilized at the end of the battle.
That did not last long and the Fury soon returned, but after another fierce battle, the Captain Britain Corps member Captain UK (each dimension has their own version of Captain Britain) finally succeeded in (seemingly) destroying the Fury after Captain Britain severely weakened the beast (Captain UK struck before it could repair itself, because each time it repairs itself, it upgrades itself and makes itself even deadlier!)