Steel Darkness is a special move used by Klaus and his Grand Capricorn 145D.
Beyblade: Metal Masters[]
Steel Darkness is Klaus' second special move where Capricorn makes steel horns bend them so the sharp end is facing forward and rams into the opponent while covered in a red tornado. Klaus first used this move to defeat Chi-yun Li. It looks similar to Tobio's special move, Lightning Screwdriver.