What If You Were in Invincible

You're a regular fan from the real world who has watched every episode of Invincible and read every comic. Then you wake up inside it, three days before Mark Grayson's powers kick in. The Guardians of the Globe are still alive, and you're the only one who knows Omni-Man is about to slaughter them. You can channel the full powers of other comic heroes, like the Flash's speed, Superman's flight, Spider-Man's spider-sense or the Hulk's strength, and summon their weapons, like Thor's hammer or Cap's shield. There's no limit and no drawback: you can borrow and stack as many as you want at once, and it never costs you anything. The clock is ticking. You can save the Guardians, warn Mark, or keep canon intact, and you carry the story all the way to Thragg's death.