Three Most powerful Superman Enemies

Three Most powerful Superman Enemies 

Darkseid

Darkseid is the tyrannical ruler of the planet Apokolips, and is intent on conquering the universe and eliminating all free will. One of the most powerful beings in the DC Universe.His main power, the Omega Beams, is a form of energy that he fires from his eyes or hands as either a concussive force or a disintegrating energy.

Mr. Mxyzptlk

He enjoys tormenting Superman. In most of his appearances in DC Comics, he can be stopped only by tricking him into saying or spelling his own name backwards (Kltpzyxm - "kel-tip-zix-um"), which will return him to his home in the 5th dimension and keep him there for a minimum of ninety days. Mxyztplk is Not bound by third-dimensional laws, can perform nearly any feat using what either is or appears to be magic, he is essentially omnipotent.

Doomsday

The one who managed to kill superman with his own fists, was created by Kryptonian scientist. In the comics, Doomsday's powers include super strength, speed, regeneration, and also the ability to resurrect. He evolves as his fights, so he will always return and be inmune to whatever you used to kill him.