Thanos gathering the Infinity Stones to obliterate half the universe.
Thanos searching for a new Infinity Stone.
Thanos trying to defeat the X-Men.
Thanos restoring peace to the universe.
An alien attack on Earth.
The Superhero Registration Act.
An economic crisis.
The rise of a new superhero team.
The invasion of another galaxy.
An intergalactic war between the Kree and Skrull empires.
A rogue faction of Avengers.
A powerful magic artifact.
Hex powers that alter probability.
The ability to communicate with animals.
Super strength and durability.
Shape-shifting ability.
Red Skull, a Nazi villain.
Loki, the trickster god.
Ultron, an advanced AI.
Thanos, the mad titan.
Skrulls infiltrating Earth by replacing superheroes.
Aliens attacking without any warning.
Skrulls forming alliances with Avengers.
Skrulls creating a new world.
The 'Infinity Saga'.
Age of Apocalypse.
The 'Kang Dynasty' storyline.
Dark Phoenix Saga.
A rogue group of young mutants.
A group of young superheroes inspired by the Avengers.
Tony Stark's new team.
Alien teenagers protecting Earth.
A misunderstanding that leads to a war.
An alien invasion.
A conflict between the Avengers and the X-Men over the Phoenix Force.
A struggle to protect mutant-kind.
The team faces internal destruction due to Scarlet Witch's breakdown.
A sudden attack from outer space.
The disappearance of key members.
Funding issues for Avengers Tower.
Ultron conquering Earth and the Avengers' mission to stop him.
A conflict between two Avenger factions.
Thanos attacking with the Infinity Stones.
A race against time to save a hero.
Thor, the god of thunder.
Tony Stark (Iron Man).
Steve Rogers (Captain America).
Black Widow, the super spy.
Avengers Armageddon.
Avengers vs. X-Men.
Age of Apocalypse.
Astro vs. Xeno.
A struggle against cosmic entities.
An ancient fear-god called the Serpent wreaks havoc on Earth.
The Avengers dealing with global threats.
A new villain attacking the Avengers.
Professor X, head of the X-Men.
Scarlet Witch, who alters reality.
Doctor Strange, the master of magic.
The Kingpin, a criminal mastermind.