User blog comment:Atmey/Impregnable Mail/@comment-5287086-20130107224512/@comment-3529242-20130108050801

With Wukong or Jarvan with black cleaver the AD carry doesn't even need LW and still deals tons of damage, Liandy and Void staff is a killer combo. Ninja Tabi just gaurds against AA, don't do much against AD casters, and there is no tabi for magic damage. With S3 changes these items are core items rather than countering armor and mr stacking.