2008's Mr. Olympia and 3-time Arnold Classic winner is ready to cut out the competition. Dexter 'The Blade' Jackson is again one of the sharpest contenders at this year's Arnold Classic.2008's Mr. Olympia and 3-time Arnold Classic winner is ready to cut out the competition. Dexter "The Blade" Jackson is again one of the sharpest contenders at this year's Arnold Classic. With a 4th title, will his hometown of Jacksonville, FL have new meaning?