Simply put, an Undead Troll, one of the few that are sentient, let alone free of the Lich King's influence. A long and varied history is involved with him. Suffice to say, he was in one of the original Mossflayer Hunting Parties, which discovered what would lead to their downfall - Deer. Tainted Deer, to be specific, which led to the once-proud Mossflayer Tribe to fall to darkness. Rajal, at the time, was a simple hunter, trying to keep his family alive through the myriad infections and problems of Zul'Mashar. He secretly fed on the Deer before the rest of them, and stumbled off in a daze. After a long journey, from the West Plaguelands, to Hillsbrad Foothills, to Silverpine, finally leading to Brill, he began to change both physically and mentally. After time spent working for the Forsaken there, he began to entertain various paranoid delusions, insanities and general side-effects of been Undead.
In current times, he spends his days Blacksmithing in silence, resisting various urges of uncouth sorts, still insane, still paranoid, and still obsessed with the perfect creation of Blacksmithing. With every failure, comes new lessons learned, with every success comes a perfect creation smelted back down to re-make it over and over again.