Hearthpwn

this deck is the one that beat Heroic Magic Mirror. The basic goal of it is to mill him to death. Hopefully his duplicates and mirror entities will land a card draw. Play board clears when necessary. Soggoth will be a late game finisher, as he will have to trade his board into in. I t took me only 2 tries to win!

Try to mulligan for card draw, especially Runic Egg, as well as a board clear. Those are the winning factors. Hopefully at the end, he will be out of cards and have no board, allowing you to win easily. 

I will try to update this guide in the next few days.