Nice idea, and yeah Rutarete is right, I just posted like 4 or 5 cards and I have comments from a grand total of like 3 or 4 people, max. I like what you did, but I think you are going to need some original art here as you mentioned in your comments. I wouldn't say it is exactly half as powerful as antimatter though. because it still would prevent things who inflict poison upon successful attack useless, which as I learned today, antimatter does not. If a forest scorpion does -1 attack it still poisons you!. not when it does 0. It would also be almost as useful as antimatter in dealing with things which have the ability: Ablaze. So all and all I feel it could almost be worth more than 4, and 3, but as of now I am not sure if it should be.