Talk:Skills/@comment-125.254.60.228-20130417185259/@comment-7310981-20130417204857

Each time you are attacked, you lose defense points. Occasionally these are noted in the stats you see when looking for a battle (though not always, from what I've seen). If someone you are wishing to attack shows 0 defense, then they have been attacked so frequently that they have lost all their defense points. They will automatically lose any attack against them (so are good for farming wins towards the win awards, though you can only attack a person 5 times).