Talk:Wukong/@comment-155.33.152.197-20130216092725/@comment-217.83.186.35-20130219150916

BC: "Dealing physical damage to an enemy champion reduces their armor by 5% for 4 seconds. This effect stacks up to 5 times."

Wu's ult deals physical damage > every tick of his ult should apply 1 stack > Wu's ult lasts for 4 seconds and deals damage every second > every target who stayed in Wuko's ult for the full duration will have 4 BC stacks (20% armor pen)