While Marvel and DC Comics might collectively own most of the world's biggest superheroes, it's been a while since the two comic book titans really got along. Although Marvel and DC crossed over regularly throughout the late 1990s and early 2000s, the publishers haven't officially teamed up in over 15 years. However, the publishers were on considerably friendlier terms in 1996.

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That's when the two comic book giants co-produced Marvel vs. DC, by writers Ron Marz and Peter David and artists Dan Jurgens and Claudio Castellini, which resulted in the two companies mashing up characters. Throughout two series of one-shot comic books in 1996 and 1997, fans got to explore a world filled with characters like Dark Claw, a combination of Wolverine and Batman, and teams like the Justice League X-Men. These characters were often extremely powerful and are fondly remembered.

30 Spider-Boy

Spider-Man (Ben Reilly)/Superboy (Kon-El)

Spider-Boy and Bizarrnage in DC and Marvel's Amalgam comics

For a little while in the mid-1990s, Spider-Man and Superboy were both clones. While Ben Reilly and Kon-El aren't as prominent as they once were, the two clones combined to create Amalgam's Spider-Boy. After Project Cadmus created Peter Ross, his adoptive uncle, General Thunderbolt Ross, perished. While battling monstrous foes, Spider-Boy saved innocent lives with distracting witty banter that also made him a crowd-pleasing celebrity.

Besides a snazzy leather jacket and a web-shooting pistol, Spider-Boy also has gravity-manipulating powers. Through novel uses of this power, Spider-Boy gave himself super-strength, heightened agility and the ability to walk on walls, a mash-up of Spider-Man's amazing powers and Conner Kent's.

29 Dark Claw

Wolverine/Batman

Dark Claw poses before a setting sun in DC and Marvel's Amalgam comics

While DC's Batman and Marvel's Wolverine share tragic lives and fierce fighting styles, the two icons aren't the most obvious pairing. Still, Amalgam saw the two icons merge to become Dark Claw. After Logan Wayne's parents perished, he moved to Canada with his uncle, until he also perished.

Dark Claw had a jaw-dropping assortment of abilities at his disposal. This makes sense for someone who combines Wolverine's many legendary powers with Batman's skills, intellect, and resources. Between his healing factor, genius intellect, adamantium claws and mastery of 127 fighting styles, Dark Claw was bad news for any criminal in New Gotham City.

28 Hyena

Sabretooth/Joker

Hyena laughs while battling DarkClaw in DC and Marvel's Amalgam comics

Since Batman and Logan were mashed-up to form Dark Claw, their arch-rivals, the Joker and Sabretooth, merged to form the Hyena. Dark Claw's perfectly named nemesis was originally Creed Harley Quinn. Like Dark Claw, Creed went through the Weapon X Project, which gave him a bizarre appearance and adamantium claws on his fingertips.

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While his healing factor saved his life, it didn’t save Creed's sanity. After becoming too savage for Weapon X, the Hyena dedicated himself to eliminating Dark Claw. Besides his other abilities, the Hyena also has super-strength and a range of destructive gadgets like Frolic Frags.

27 Wraith

Gambit/Obsidian

Wraith grins while wearing a tan cloak in DC and Marvel's Amalgam comics

On the surface, Gambit, the X-Men's card-throwing Cajun, and Obsidian, the occasionally evil son of DC's first Green Lantern, have little in common. Still, the mutant and the shadow-controlling antihero were mashed-up to create Amalgam's Wraith.

After growing up in New Orleans, LeBeau was given a set of magic playing cards that activated his meta-mutant abilities. With his shadowy powers, Wraith could become intangible, manipulate his size, charge objects with his dark kinetic energy and had limited telepathic abilities, which he used in the Justice League X-Men.

26 Shatterstarfire

Shatterstar/Starfire

Shatterstarfire turns around surprised in DC and Marvel's Amalgam comics

When Marvel's Shatterstar and DC's Starfire were merged, the resulting Amalgam creation was, naturally, called Shatterstarfire. While that name might make the character seem like a joke, Shatterstarfire's origin finds a lot of common ground between the alien X-Force member and the alien Teen Titan.

After being taken from her subatomic home, Tamojoran, Princess Koriand'ru joined X-Patrol, a meta-mutant superteam. Although she never quite got used to Earth, she was one of its most powerful heroes. With the combined abilities of Starfire and Shatterstar, she could fly, had super-strength, and project energy blasts. Additionally, Shatterstarfire was an extraordinarily skilled and incredibly agile fighter.

25 Brother Brood

Brother Blood/The Brood

Brother Brood snarls while wearing armor in DC and Marvel's Amalgam comics

Although it wasn't around for long, Amalgam excelled at bringing completely disparate concepts together in characters like Brother Brood. While Brother Blood is a DC cult leader who fights the Teen Titans, the Brood are essentially Marvel's version of Alien's parasitic Xenomorphs.

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As the leader of the Cult of the Brood, Brother Brood had an increasingly large army of alien Brood and brainwashed disciples at his disposal. Despite its might, Brood's army was left wandering around mindlessly after he was defeated.

24 Captain Marvel

Shazam/Mar-Vel

Captain Marvel flies ahead of his team in DC and Marvel's Amalgam comics

Between the Marvel and DC Universes, 11 major heroes have been called Captain Marvel at one point or another. While Marvel's Carol Danvers has the strongest claim to the name today, mostly due to court cases, two other Captain Marvels merged to form Amalgam's Captain Marvel.

Marvel's Kree alien hero Mar-Vell was combined with DC's young Billy Batson, who transforms into the hero now called Shazam! In the Amalgam Universe, young Billy Mar-Vell turned into the adult, alien-powered Captain Marvel by shouting "Kree!" This "super-science" hero had most of Shazam's powers, including immense super-strength, super-speed and flight, to name a few.

23 Niles Cable

Professor Niles Caulder/Cable

NIles Cable looks to the side, his right eye glowing in DC and Marvel's Amalgam comics

While Marvel's time-traveling psychic mutant is one of the most definitive characters of the 1990s, DC's Niles Caulder, the Chief of the offbeat team Doom Patrol, had a much lower profile. Amalgam's Niles Caulder got the Chief's red-hair and beard. However, his origin, powers, and appearance came from Cable, the character hailing from an alternate future sent back to stop it from happening.

Despite his immense telepathic abilities and cybernetic enhancements, Niles Cable briefly lost the use of his legs after battling Doctor Doomsday. Still, he was successful in helping X-Patrol prevent a dark future controlled by Brother Brood.

22 Sinistron

Mister Sinister/Psimon/Ultron/Brainiac/Nimrod

Sinestron walks through an explosion unharmed in DC and Marvel's Amalgam comics

While most Amalgam characters are only combinations of two characters, some characters use aspects of several Marvel and DC characters. Technically, the robotic Amalgam villain Sinistron is a combination of Marvel's X-Men villain Mister Sinister and DC's Titans villain Psimon. However, Sinistron also brings in aspects of robotic villains like Marvel's Ultron and Nimrod and DC's Brainiac.

Although he was built to be the ultimate meta-mutant-hunting Sentinel, Sinistron rebelled against his creator, Will Magnus. Using his adamantium body, mind-controlling Encephalo Ray, technological genius and numerous energy weapons, he tried to build a world-conquering meta-mutant army on the island Genosha.

21 The Four-Armed Thing

The Thing/Rocky Davis

Four-Armed Thing fights opponents in DC and Marvel's Amalgam comics

As his name implies, the Four-Armed Thing is a version of the Fantastic Four's Thing with an extra set of arms. While Rocky Grimm's appearance takes a lot from Marvel's super-strong hero, he was combined with the human adventurer Rocky Davis, from DC's Challengers of the Unknown, in Challengers of the Fantastic.

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Like his adventure-loving teammates, Grimm "cheated death" after his experimental spacecraft made a crash-landing. The cosmic villain Galactiac turned Rocky into the Thing, shortly before the rampaging hero used his immense strength to destroy the alien's ship.

20 Mercury

Impulse/Quicksilver

Mercury grins, eager for battle in DC and Marvel's Amalgam comics

While Marvel and DC both have plenty of speedsters, Amalgam's Mercury is a somewhat unlikely combination of the Avengers' Quicksilver, Marvel's most famous speedster, and DC's Impulse, a younger speedster from the far-future. Amalgam's Pietro Allen was also from far-future, which was ruled by meta-mutant-hunting Sentinels.

Despite his harsh upbringing, Mercury was an annoyingly upbeat presence on the Justice League X-Men. Like most speedsters, Mercury's primary super-power is his super-speed, which allows him to move and think incredibly fast. While the true nature of his powers is unclear, he may have also used it to time-travel to the modern age.

19 Iron Lantern

Iron Man/Green Lantern

Iron Lantern surrounded by several characters from DC and Marvel's Amalgam comics

Throughout the 2000s, both Iron Man and Green Lantern became considerably more famous. By chance, Marvel's Armored Avenger and DC's Emerald Warrior were also combined to form Amalgam's Iron Lantern in 1997. While testing out an experimental aircraft, inventor Hal Stark was drawn to an alien crash site.

While his quick-thinking saved his life, it also gave the Iron Lantern a dozen super-powers. Besides the numerous abilities of Iron Man's standard armor, the Iron lantern can create solid energy constructs and travel through time.

18 Aqua-Mariner

Aquaman/Namor The Sub-Mariner

Aqua-Mariner contemplates what to do in DC and Marvel's Amalgam comics

Unsurprisingly, Aquaman and Namor the Sub-Mariner, DC and Marvel's respective Kings of Atlantis, were combined to create the Aqua-Mariner, Amalgam's sea-dwelling hero. In Amalgam's world, Arthur McKenzie initially surfaced as a hero during World War II and began his ongoing quest to find the lost city of Atlantis.

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In his ongoing search for his ancestral home, Atlantis, the Aqua-Mariner was eventually joined by members of the meta-mutant team JLX, who could also trace their powers to the undersea kingdom. Like Aquaman and Namor, Aqua-Mariner has considerable super-strength, enhanced speed, and a variety of other abilities that are especially effective in water.

17 Magneto

Magneto/Will Magnus

Magneto flies through the air, yelling and firing energy in DC and Marvel's Amalgam comics

On the surface, it might be tough to see too many differences between Marvel's Magneto and Amalgam's Magneto. While both might share the same name, similar costumes and identical powers, Amalgam's Magneto was also based on DC's Will Magnus, the robotics genius who built the Metal Men.

As a group of anti-Sentinels, the offbeat Magnetic Men fought for meta-mutant rights. While Amalgam's Magneto has the same powers as his famous namesake, Magnus is considerably smarter and uses his abilities in more innovative ways.

16 Mister X

Martian Manhunter/Professor X/Skrull

Mister X ponders his next move in DC and Marvel's Amalgam comics

In the Amalgam Universe, one of Magneto's chief rivals is Mister X, the mysterious meta-mutant psychic who leads the Justice League X-Men. Eventually, X was revealed to be a disguised J'onn J'onzz, a shape-shifting Skrullian Manhunter from Mars.

Inspired by Marvel's Professor X and DC's Martian Manhunter, Mister X had immense telepathic abilities thanks to his unique alien physiology. His alien heritage also gave him considerable shape-shifting abilities that allowed him to go undetected for a lengthy-but-undisclosed amount of time. As if that wasn't enough, he also has super-strength and some degree of super-speed.

15 Skulk

Hulk/Solomon Grundy

Skulk attacks everyone around him in DC and Marvel's Amalgam comics

While the Hulk is a prominent Marvel character, his Amalgam Universe counterpart, Skulk, only plays a supporting role. As a henchman for Doctor Strangefate, Skulk is a super-strong beast who's partially inspired by the mindless DC villain Solomon Grundy.

In exchange for his service, Strangefate helped Banner control his monstrous Skulk form. Since the Hulk and Grundy are two of the strongest characters in their worlds, Skulk is almost certainly the most physically strong Amalgam character.

14 Super-Soldier

Superman/Captain America

Super Soldier attacks a giant robot in DC and Marvel's Amalgam comics

In the same way that Marvel's Captain America and DC's Superman and the biggest heroes in their respective universes, their Amalgamation, Super-Soldier, is the epitome of heroism in the Amalgam Universe. As part of an effort to create a super-soldier, the human Clark Kent was injected with a formula derived from an alien that had crashed on Earth in the 1930s.

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After fighting in World War II, Super-Soldier spent years frozen in the Atlantic before returning to active duty. In addition to Superman's plethora of powers, Super-Soldier also has Cap's fighting expertise and an indestructible vibranium S-shaped shield.

13 Kid Demon

Wally West/Ghost Rider

Kid Demon roars in rage in DC and Marvel's Amalgam comics

In some of Amalgam's odder pairings, a few DC speedsters were combined with some of Marvel's supernatural Spirits of Vengeance. For instance, Wally West, the second modern Flash, merged with Danny Ketch, the second modern Ghost Rider, to form Kid Demon. After West discovered his uncle was the Speed Demon, the wizard Merlin gave West supernatural powers.

Although his power is derived from the villainous Night Spectre, Kid Demon has fire-manipulating abilities, a mystical chain and a flaming motorcycle that moves at super-speed. His abilities were largely untested, but he began working with Speed Demon as his sidekick.

12 Doctor Doomsday

Doctor Doom/Doomsday

Doctor Doomsday gets angry in DC and Marvel's Amalgam comics

In another one of Amalgam's most simple-but-inspired pairings, Marvel's Doctor Doom and DC's Doomsday merged to create Doctor Doomsday. When the brilliant Victor Von Doom found the body of the alien Doomsday, one of the monster's bony outcroppings scarred Doom's face and transformed him into the equally monstrous Doctor Doomsday.

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Despite his beastly appearance, Doctor Doomsday still has Doom's technological genius and hi-tech armor. Along with the monster's limitless strength and regenerative abilities, Doctor Doomsday is one of the strongest, and smartest, characters in the Amalgam Universe.

11 Amazon

Wonder Woman/Storm

Amazon flies above a roaring ocean in the rain in DC and Marvel's Amalgam comics

Amazon is one of the signature creations of the Amalgam Universe. Inspired by DC's Wonder Woman and Marvel's Storm, Ororo was adopted by Queen Hippolyte when she was found on Themyscira as a child. After Ororo's weather-controlling meta-mutant powers emerged, she won the title of Wonder Woman. Ororo became the Amazons' ambassador to man's world instead of her sister Diana.

Besides her weather-manipulating powers, Amazon also had Wonder Woman's impressive slate of powers like flight and super-strength. She could also create a "lasso" out of lightning that compelled anyone caught in its shocking grip to tell the truth.