Kotal Kahn (Primary)

this dude is the motherfucking emperor.
he manages to hang tough with Goro and dishonors him by dismembering all four of his arms and leaving him without said arms
despite Rain blotting out the sun, he still manages to burn the everloving fuck out of Rain to almost nothing
he destroys a massive part of the army raiding his town lead by Kintaro via nuke and, thusly, made Kintaro submit and serve him
he's gotten shit done and actually got Mileena killed, a thorn in his side
and he's wrecked just about everybody he's fought so far. that's a goddamn emperor.