Drow Ranger

Drow Ranger is a ranged hard carry who excels at laning. She is fragile, but is capable of hitting opponents with high DPS. Her first ability, Frost Arrows, adds a slow to your attack for the cost of a small amount of mana. If you manually cast Frost Arrows on an enemy hero, it will not attract enemy creeps or towers - so with skill you can continually kite a hero until they die. Her second ability is an area of effect silence which can be crucial during teamfights. Her passive ability gives all nearby heroes a damage bonus, and her Ultimate (also passive) improves her agility.

Trivia

 * Traxex's original design showed her with the same hood on her head but showing no hair and with completely white eyes.
 * Traxex's Ultimate, Marksmanship, was originally a chance to one-hit kill creeps; however, in a DotA Allstars update it was changed to be the passive agility buff she now has.