Almost any mage is going to be used.
If you give him 18 hit points, high combat skills, nature and astral, and a soul-drinking weapon, he'll be a very effective thug, although you probably wouldn't make equipment for him.
Alternatively, you could make him as a pretender chassis
, give him like 25 hit points and a soul drinking sword - with enough special powers (glamour, fear and ethereal, say) he'd be a suitable SC god even with barely above human scale hit points.