I'm coming round to the view that this card spoils Ant-Man for me. Once you have this and Quincarrier down, then you can stun the bad guy every turn, provided that you are in Giant form for at least part of the turn (which you will be anyway, because of all the benefits of switching form every turn). Not only is the card powerful and cheap, but there's no tension between the best strategy for using it, and the other key cards like Army of Ants and Ant-Man's Helmet.