>>113365393He's Galactus-level.
The Matrix is basically the Ultimate Nullifier, as far as he is concerned.
Most heroes and villains wouldn't even register.
The Sentry might be able to take him on. Doom might pull something out of his hat.
But... not liking the odds. He's neither just a big bad guy, nor a weaponized planet, nor an evil god: he's all three.
He can take villains and turn them into heralds.
If he arrives at Earth, it's curtains. Consuming a planet doesn't take hours, like with Galactus, but minutes. About the length of a pop song, that is how long Earth would have.