Forum:Defense Draw

I have a question regarding defense draw. Someone told me that if your opponent attacks with multiple monsters, and then you activate defense draw, all battle damage you could have received from the attacking monsters is reduced to 0, draw a card, blah blah. My fiancee says that it's like waboku and only works for 1 attacking monster. Who is correct? I need to know because it's aggrivating arguing about it. lol