the question is the wording on her mystery Mainly the part on Targets struck by her mystery have there chakra Usage increased by 20 points for 2 rounds does that mean the amount it takes to use there talents is raised ,,,like if normally takes 20 to attack it takes 40 instead ?? or is it some other buff or debuff

Any Info on this Question will be Much Appreciated by me and im sure all who read the answer as well