I was playing Carnivorous Cubicle in Death Knight. Consumed a Distressed Kvaldir with the cube. My opponent play’s Reno, the Lone Ranger and Clears my Board. I played Buttons to draw some from my deck. At the end of that turn and every turn for the rest of the game, the Carnivorous Cubicle effect would trigger, giving me a Distressed Kvaldir even with a completely empty board.