Memetic Badass / Card Games
has (or had, the fad has mostly passed now) Magic: The Gathering Tarmogoyf Facts, based on the rather overpowered creature Tarmogoyf.
Chimney Imp. Horribly overcosted creature, or Best. Creature. Ever?!?
Craw Wurm, for the same reason.
More in the tradition of Tarmogoyf, Koth and Jace (espeically his Mind Sculptor version) are looking to be this.
A few Magic: The Gathering players have also gotten the Chuck Norris treatment:
Storm Crow. In reality, Storm Crow is an absurdly average and forgettable card. According to the fandom, it is the most powerful creature to ever exist.
Tarkir also brought us Surrak Dragonclaw, a guy so badass his card can best most dragons in the block in single combat... and the block is chock-full of badass dragons. He's most known from earning his rank by punching a goddamn bear in the face. Most Khans got demoted or died in the alternate timeline of Dragons of Tarkir. Surrak? Still alive and kickin'. And still badass. And now punching FREAKING DRAGONS in the face.
Fans of the Universal Fighting System collectable card game have elevated players to such levels.
Matt "Matt Khols" Khols, the only man badass enough to have his whole name be his nickname.
Alternately, Scott "Scott Gaines" Gaines, the master of orange card-blue card.
James Hata, former US and World Champion and new designer for Fantasy Flight Games (the game's producer) is regarded by some as God.
Shape Snatch in the card game. Yu-Gi-Oh! Look at it and despair at its horrible power!
The has several classic examples. Most notably, Charizard from Base Set conforms to this trope to a T: although it is one of the slowest attackers from the set, one of the most inefficient, outclassed in both HP and attack power by nearly every stage two since 2007, and no rarer than any other holographic, the casual fandom (as well as retro fans) adamantly claims that it is the undisputed strongest card in the game.
Pokémon Trading Card Game