Once per turn: You can pay LP in multiples of 100; other face-up monsters on the field lose that much ATK. Once per turn: You can target 1 monster on the field with ATK less than or equal to this card's; destroy it. If this card is destroyed by battle or card effect: All face-up monsters on the field lose 1000 ATK.
But in'st this card makes it so you pay LP and not actually counted as taking effect damage. I personally play this in my Aromage deck. Since Humid winds 2nd effect cant be activated when you're LP is higher that your opponent this cards solves that problem.