Fel Reaver is used on curve for exactly that reason. Cause panic and uses their removal. Yes, you lose cards, that's the trade off. The point of these decks are the game is meant to be quick. I've bounced back to R5, and I've only been using this deck for some time now. :/
Edit/Note: I started this deck at R8. I used Pally to climb to R5, then experimented around with some stuff, ended up at 8 by the end of that. So maybe this deck can't perform at Rank 15+ or something. I don't know. Seems to go ok around the Rank 8+ (Pally is still better).