Fics like Oh No! I Isekai'd as Mr. Sinister's Clone

My name was Liam Hayzes… but in this world, my name is Nathaniel Essex! Yes, that Nathaniel Essex. Mr. Sinister. Getting hit by a car wasn’t bad enough — I had to die and wake up as one of his old, discarded clones. For God’s sake, of all people, of all mutants, why him? I was never lucky, but now I’m certain fate outright hates me. Really hates me. And as if things weren’t bad enough, I’ve even got a system window. But instead of giving me cheat skills or power-ups, it handed me a mission: “Let this clone off the hook.” In other words, I’ve got to fix Sinister’s unfinished wrongdoings… to become Mr. Not-So-Sinister. Too bad this is the Marvel Universe. The X-Men never had peace — and now I’ve just been dropped into their world at the worst possible time.

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