If you're in the mood for a s@!#ty short story, I redirect you here: part 1 / part 2. This will probably get a major rewrite at some point, so hold on to your trousers.
Personality-wise, Corvin is taciturn, somewhat unrefined, and downright terrifying in battle, as well as having an amazing quality to state the obvious. However, underneath, there seems to be a hidden layer of something... atypical for someone in his profession.
Corvin stands a bit over six feet tall, with long limbs, broad shoulders, and a long, thin face set with a long, pointed nose, sky-blue eyes, and a thatch of greasy blond hair. Most notably, though, Corvin's armor is literally fused to his body, the result of an unknown aura inside the Tower of Grimmbold Manor acting upon an enlarge person spell. Numerous spines of bone and metal protrude through the gnarled scars and twisted steel, particularly on his chest, arms, and hands. The bones of his spine protrude nearly six inches through his skin, creating a hard, spiny ridge down his back.