Suggested Players 
<name>, gather at least one other person and head back down there!
Kill him and bring me his head!
I look forward to mounting his head on a pike. Let's see him come back from that!
You're the <hero/heroine> of the hour, <name>.
<Moonshard kicks the head away from him.>
You deserve our deepest respect, and something more I think.
Malas The Corrupter is very slow, and can be easily kited in a loop around the top of the crashed ziggurat where he is pulled. Any kiting class can theoretically solo him with little difficulty, HOWEVER, he does have an ability, "Wavering Will", that slows your movement speed by 50%. This is a magic debuff, so warlocks should use their Felhunter to dispel it; combined with a warlock's DoT's makes the encounter trivial for this class.