Aside from Tough spelling Marax Khan wrong, here is one of the biggest and devastating Marax Khans there is.

Orrhax is a brute force assassin of the planes, his form is capable of semi shifting into the phased plane which allows him to run or charge through anything without it impeding his progress. His elders will notify him of the target and he fractures a small section of their skin (Regardless of his distance to the target, they will always be marked once he starts charging), temporarily burning a small glowing mark onto them, a warning of his incoming arrival. Once the target has been marked he phases out and begins his galloping assault. The phasing out nature of his devestation charge means that as said previously, he cannot be impeded or stopped by most normal weapons, he will charge through anything and everything, taking the most direct route that would be physically impossible for others... directly at them. As a result of this, he appears seemingly from nowhere on his chosen target, roaring a deafening and alien warcry, slamming into his victim with earth shattering force, drawing forth residual energy from the phased plane still coating his obsidian armour to explode out in the form of flesh dissolving shock waves of force. Sometimes this kills his target(s) outright but in the event it doesn't, he's well equipped for heavy melee combat. The huge war blade slices and eviscerates those stupid enough to get close and the massive flail he carries adds a some small range to his attacks, as well as a brutal bludgeoning assault.

The Flail serves as a lantern too, as the Marax Khan live deep underground with little light sources, Orrhax always carries his flail with him to light the various tunnels he walks through daily.

Theme tune: http://www.youtube.com/watch?v=5m3Pc77egSg&feature=BFa&list=FLKwDL4EiCRT8lYWacWa01zw

Done by  toughset