Marvel Super Hero Contest of Champions

Marvel Super Hero Contest of Champions is a three-issue comic book limited series published from June to August 1982 by Marvel Comics. The series was written by Mark Gruenwald, with art by John Romita Jr. and Bob Layton.
This series was significant as it was Marvel's first published limited series. "Contest of Champions" brought forth the idea of a major event affecting the Marvel Universe; it introduced crossovers before the concept of multi-title crossovers was even conceived.
An unrelated five issue limited series published in 1999, "Contest of Champions II", is a sequel in title only.
Publication history.
The story was intended to be a celebration of the 1980 Summer Olympics held in Moscow, and depicted Marvel superheroes engaging in competitions. The plan was scuttled when the United States refused to participate in the summer games, as a protest against the Soviet invasion of Afghanistan in late 1979. The comic was already mostly-complete, so Marvel published "Contest of Champions" two years later, with a reworked storyline that avoided any connection to the Olympics.
Plot summary.
An Elder of the Universe, the Grandmaster, challenges a hooded female called the "Unknown"—eventually revealed to be Death—to a game for the life of his fellow Elder, the Collector (killed by the cosmic being Korvac in the title "Avengers"). The pair decide to use various superheroes from Earth as pawns, the goal being to collect the four pieces of a prize called the "Golden Globe of Life." A victory for the Grandmaster's team means the Collector may be resurrected, while a loss indicates the character must remain dead.
The Grandmaster's team consists of Captain America, Talisman,
Darkstar, Captain Britain, Wolverine, Defensor, Sasquatch, Daredevil, Peregrine, She-Hulk, the Thing, and Blitzkrieg.
Death's team consists of Iron Man, Vanguard, Iron Fist, Shamrock, Storm, Arabian Knight, Sabra, Invisible Girl, Angel, Black Panther, Sunfire, and the Collective Man.
Although the storyline depicts a tie and the Grandmaster's team is written as being successful, Death advises that the Collector can only be resurrected if the Grandmaster takes his fellow Elder's place in the Realm of the Dead, with the character agreeing to the terms. International heroes Blitzkrieg (Germany); Collective Man (China); Defensor (Argentina); Peregrine (France); Shamrock (Ireland); and Talisman (Australia) debut in the series, and each issue contained a catalogue of all featured heroes and was the prototype for the publication the "Official Handbook of the Marvel Universe".
In 2015 "Deadpool's Secret Secret Wars" revealed that alongside the main contest a bonus round occurred featuring lesser-to-unknown characters. The Grandmaster's team consists of Rocket Racer, She-Man-Thing, The Vile Tapeworm, and Frog-Man. Death's team consists of Deadpool, Howard the Duck, Doop and The Pink Sphinx. Death's team wins, the prize being a 'participant' trophy.
An "Avengers Annual" eventually reveals that this was a ruse perpetrated by the Grandmaster as he is able to steal Death's powers and then, via another deception, forces the entity to banish all Elders from her realm, effectively making them immortal.
"Contest of Champions" (2015).
In the aftermath of Secret Wars, the Collector and Grandmaster put in motion another Contest of Champions. They use the remnants of Doom's Battleworld as their base of operations which becomes known as the Battlerealm, with the prize being an artifact called the Iso-Sphere.