Is that a serious question?

Doctor Doom

I mean, doctor doom is in a full suit of armor. Couldn’t magneto just crush him like a tin can?

^There are metals which are not magnetic.

Apparently, Doom’s armor is made of titanium. I looked up if titanium is magnetic or not, and got mixed results. But it seems like it normally isn’t, but in certain conditions can be.

However I’m pretty sure magneto has shown the ability to control metals that aren’t magnetic in the real world. Though I could be wrong about that since I’m just going off memory.

I am given to understand with effort he can increase the electromagnetic fields in association with metals, but I can, from my 25 years as a heat treat specialist pretty much tell you that high carbon alloys tend to be nonmagnetic.

Still, Doom is a master of the mystic, martial, and physical sciences, and it would be absurd to assume he hasn't prepared contingencies against Magneto.

Good point

Couldn't magneto just squish him with his own armor?

Nevermind, his armor is made of a titanium alloy, and titanium is nonmagnetic, even if it was magnetic, I feel that Doom could kill him before he could start to crush him