I was going over old bios and I came across Khameleon's MKA bio. Here is some of it. "It seemed that Shao Kahn was invincible. His allies served and protected him, and those who fought against him only seemed to make him stronger. It was as if he fed on kombat itself." This is really cool and it's a shame they dumped this concept. It was already stated he used to be Outworld's protector god, makes sense he's the god of war.

Like Ares Shao Kahn get's stronger with war. Since he's been ruling Outworld and conquering realm after realm for thousands of years you'd think he would be nigh invincible what with the more souls he absorbs the stronger he gets plus the chaos of invading a realm would feed him more energy.