Overview
During the Super-Hero Civil War, a group of heroes led by Iron Man, Mister Fantastic and Yellowjacket created a massive prison in the Negative Zone to house captured non-registering heroes as they waited for their trials. It was designated Negative Zone Prison Alpha but nicknamed "Fantasy Island" or "Wonderland" by inmates. Tony Stark himself named it "Project 42", as it had been the 42nd idea out of a hundred that he, Reed Richards and Hank Pym had created following the Stamford Disaster. There were portals to it planned for every single state so prisoners could be transported there by the…
⚔️Canon Versus Matchup Arena
Simulate authentic head-to-head clashes featuring Prison 42 against rival superheroes, supervillains, superpowers, or historic bastions.
CANONICAL VERSUS MATCHUP ENGINE50 / 50 Simulation Box
Simulate authentic head-to-head clashes between People (Superheroes & Supervillains), Gadgets, Abilities, or Places.

Doctor Doom
Victor von Doom

Mister Mxyzptlk
Mr. Mxyzptlk
TACTICAL VERDICT: Mister Mxyzptlk triumphs with an estimated 63% win probability. Raw destructive energy projection (100 vs 24) proved insurmountable in prolonged exchanges.
3-Round Encounter Breakdown:
Mister Mxyzptlk dictates early tempo, utilizing superior speed and reflexes (100 vs 17) to evade initial advances and land decisive precision strikes.
Mister Mxyzptlk counters with devastating offensive potency (100 Power rating), breaking through A-Bomb's forward defensive perimeter.
Exploiting an opening in the late exchanges, Mister Mxyzptlk's elite martial execution (50 Combat) overwhelms A-Bomb, landing the closing blow to claim the battle.
Publication history
Fantastic Four: Foes Vol 1 5 (as The Vault) Civil War: Front Line Vol 1 5 (as Prison 42)
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