Ultimate team of super villians

What villians if they made a pact of evil, tasted on some sinister soups of super villiany.. well teamed up, would surely be able to ultimately be the conqueres of the universe.

You can only choose 3, no omnipotent characters and you can only choose one villian more powerful than the Thanos/Darkseid league. Everything els than that is just up to the imagination.

Magneto, Sinister, Apocalypse

Doom, Magneto, and anyone else

Darkseid, Black Adam, Doom 

Very hard.....

Doom, Mags and Ultron.

(also happens to be a villain for each major Marvel team, but combined should do well)

Amazo, Super-Skrull, and Onslaught would be my team.