He-Man,Superman & Black Bolt vs Mangog vs Thanos

The Master of the Universe,DC greatest Hero & The Inhumans best weapon vs The Awesome Mangog

Mangog- http://spider-bob.com/gods_monsters/marvel/Mangog.htm

vs

Thanos- http://spider-bob.com/villains/marvel/Thanos.htm

Hmm...if they're smart, Supes and BB will occupy them long enough for He-Man to "Hulk Up" (allusion to the wrestler, not the comic Hulk). Then he'll end it with a "Class Thanos-KnockOut" punch or just rip through him with his sword with enough force to shatter a planet.

In actuality, Thanos would probably just throw enough energy at them to kill them. And I don't know enough about mangog to say.

He is powerful but he worked for Thanos but that maybe be because he is not that smart