While Doctor Strange may fight alongside Earth's Mightiest Heroes, he doesn't have their limits, leading to some truly dark moments, such as the spell he devised to kill Superman. The Sorcerer Supreme's most twisted moment came during the Incursions leading up to Marvel's Secret Wars, as the powerful heroes of the Illuminati took it upon themselves to destroy alternate reality versions of Earth in order to save their own.
When the Beyonders grew tired of reality, they set off a cascading disaster in which alternate versions of Earth were pulled into each other's orbit, smashing together to destroy both realities. When Reed Richards, Black Panther, and the rest of the Illuminati learned of this, they devised various ways to stop the Incursions, including destroying the parallel Earths that spelled certain doom for the planet. While the first few Incursions saw dead planets appear in the sky, the heroes knew that sooner or later, they'd have to face another Earth's protectors.
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That moment came on Earth-4290001, a thinly-veiled version of the DC Universe. This world was protected by the Great Society, including the solar-powered Sun God, the human vigilante Rider, super-fast Boundless, shape-shifting alien the Jovian, helmet-wearing mystic the Norn, and light-manipulating Doctor Spectrum — equivalents to Superman, Batman, Flash, the Martian Manhunter, Doctor Fate, and Green Lantern respectively. After Namor pushes the teams into a direct confrontation, the Great Society immediately prove to be more powerful than the Illuminati, with Sun God in particular downing the Hulk and turning the tide of battle. That is, until Doctor Strange unleashes a spell that
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