Rewind? Good question. I saw someone saying that PU wont work on it, too.
It doesnt look like a card to play in middle game, looks like its a card to finish the game. So, your creatures are in a stasis bubble, or congealed, and your small creatures can get through that pesky shield? Now, all your creatures will cause full damage. Game over, man, game over.
I just didnt like the art. Too much cartoon like. And this doesnt seem something that could be a 50 / 50, or even bigger. Looks much more a 1/2 mutant mosquito from Mars, with a big eye and a small mouth. No thorns, no paws, no scorpion tail, no more than 1 head...?