Sven's Gang in Cwen's Quest appear to be this having a counter part to each of Cwen's friends and allies. Zoey, the holographic observer, is Al's evil counterpart: In the Leverage episode, The Two Live Crew Job, the team squares off against a group of thieves who are just as skilled as they are in their specialties. As captain of the Exequias, Rudbornn's job is to find the wounded and kill them. Gridon to Sigurd, both are based off of Vikings and both are the most manipulative of their respective Rider group while being the most amoral members.
The second happens when Ultron decides to replace all the humans in the world with emotionless robots, and replaces some of the Avengers first. In both cases, they're more Anti Heroes and soon ally with their more heroic counterparts the Thunder Rangers fit in fairly seamlessly, but the Goraijers remained somewhat antagonistic The Ninja Storm episode Wild Wipeout deals with Tori being transported to a mirror universe a la Dorothy only via rogue wave instead of tornado. Bomber Gokudera is matched with fellow mid-to-long-range fighter Belphegor, who uses knives and wires. He lasted for pretty much the rest of the season until Trent finally destroyed him. Much later we're introduced to the Runic Wizards, enemies of Kandrakar who have at their service five counterparts to the Guardians, only males and with what appear to be dark counterparts to their powers.
These series provide examples of the following:
Hexen has Zedek, Traductus, and Menelkir, a trio of Dragons who are clones of the three player character classes. Sour Sweet has Fluttershy's sweetness, but with a heavy dose of sourness on the side. That, and she tipped her hand too early she was planning on eating both teams , so they all teamed up to defeat her instead of each other. Oh, and to top it all off, both use Eyepatches of Power. Seson two has Mu-Team, A.
Most incarnations of the Masters of Evil in Marvel Comics are constructed in this manner. Norman himself becomes the new Super-Adoptoid , making him the only Dark Avenger without any real analogue. Lorne's guide is Preston, a slick, fast-talking talent agent. In the manga, we find that they actually become Chibiusa's equivalent of the Four Guardians in Crystal Tokyo. Some of them are justified, as Legretta personally trained Tear, Luke and Asch had the same mentor, and Anise and Arietta were both trained to be the Fon Master Guardian. He changes his name and ditches the Stella-trademark business suit and moves in with two completely normal roommates, who are so mundane as to be eerie in comparison to the creepy and latently-homoerotic Stella group.
The first season of Mighty Morphin' Power Rangers featured two evil counterparts to the original Rangers. A doctor like Chopper, but, of course, not so kind; he takes an active delight in foisting off apples on people that might well kill them in a gruesome fashion. The Big Bad goes against Taiga, of course.
The Makuta of the Karda Nui saga were the closest in toy form. Nightmare Paradox has fused with five other Nightmares from previous cycles , the six of them forming one of these to the heroes. The villains aren't exact parallels to the members of the Illuminati, but share the same goal protecting Earth from Multiverse incursions. Hiruma, Unsui, amd Takami are all physically average quarterbacks who compensate with their dedication and intelligence, Kurita, Yamabushi, and Ootawara are all incredibly large noseguards who cry at the end of their games, Monta, Ikkyu, and Sakuraba are all recievers determined to be the best who have one area of specialty , and Sena, Agon, and Shin are the aces of their team. It was somewhat subverted when Batman's counterpart proved to still have the same sense of morality. They were evil space aliens who, at first, attempted to gain the trust of Earthlings by pretending to be heroes, but eventually they turned out to be villains.
In Ultima IV , the final fight is against the evil yous, a team of evil copies of your party. Kamen Rider Gaim plays this trope the straightest ironic given that its written by Urobuchi with the original Armored Riders being opposed by Yggdrasill's New Generation Riders. They had to fight two more sets of Psycho Rangers before that.
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Hiruma, Unsui, amd Takami are all physically average quarterbacks who compensate with their dedication and intelligence, Kurita, Yamabushi, and Ootawara are all incredibly large noseguards who cry at the end of their games, Monta, Ikkyu, and Sakuraba are all recievers determined to be the best who have one area of specialty , and Sena, Agon, and Shin are the aces of their team. It doesn't work nearly as well most members are nuts, after all and the squad ends up disbanded without ever meeting ZEUTH in combat once. Trigon created evil versions of Starfire, Beast Boy, and Cyborg. Probably an excellent doctor when he needs to be, but doesn't seem to care about anybody besides his crewmates. Ignoring the killer8 mode, there's one Smile for each Smith.
Legion of Super-Heroes has the Legion of Super Villains, which features some original villains, but in all incarnations features Lightning Lord, the older brother of Legionnaire Lightning Lad. For the first time since the originals which had to be identical to smear the real Rangers we don't have any tells that let you know which is which. Their costumes were basically green and yellow palette-swaps of the originals with the HYDRA octopus logo added on. The Axem Rangers in Super Mario RPG serves as being counterparts to your party with each ranger specializing in different abilities that are similar to your own and also inheriting similar weaknesses. Spidey, of course, pointed out how done-to-death the evil twin thing was.
In one of the X-Men First Class issues, the random kids in the coffee shop who correctly guess the team's orders before they're made and just-so-happen to resemble the team greatly turn out to be Skrull imposters that have been masquerading as the X-Men and causing havoc. Everything sticks to Blackbeard. Bonus points for the crew being played by people who have the same skills as their characters.
Thames is roughly analogous to Gushie, in that they're both project members working behind the scenes, and can serve as a backup observer. More often than not the evil counterparts are usually one-off clones created by the villains that are quickly disposed by the end of the episode, but a few shows have actually featured their own recurring evil Ranger team to antagonize the heroes. Oh, and to top it all off, both use Eyepatches of Power. The Black Saints to Bronze Saints; they are identical in appearance and wear black cloth versions of bronze cloth.
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The X-Wing games tend to do this. Its members except the Team Pet are the opposite gender from their respective counterparts. Originally there was to be a genuine Shadow Toa set, but it was cancelled in the prototype stage.