Talk:"Interstellar Tanabata Festival"/@comment-125.253.101.55-20130628210210/@comment-6253996-20130628234223

The debuffs add together, so if its 3 cards that reduce 20%, they would reduce 60% of the base(138,000) defense. By that point, even if no more skills activate, you would have a good chance at beating her if you take advantage of the leader bonus.