I can agree to a comparison with Fire Buckler and Thorn Carapace, but since this card has a -permanent- effect once it kicks in, I can't compare it to Gravity Shield. Blow that up and you're free to pummel. Similarly, you can destroy the other two killing CC shields before they actually do kill your creatures. This one can work its magic at turn 1. That's what makes it so threatening, and I like it. :>