Is Onslaught the most powerful marvel villain ever???
Almost. Onslaught is probably the second most powerful evil villan in the Marvel universe. First has to be Galactus, eater of planets, of course. The order goes something like this: 1. Galactus 2. Onslaught 3. Apocalypse 4. Thanos Note: Shuma-Gorath and Blackheart are also 2 of the most powerfull villans out there!