Just played a (relatively) fun game Control Priest vs Fatigue Mage. Since I had Cabaled one of his Deathlords and he didn't Duplicate or Echo the other one, I was only into fatigue 1 card faster. My very last card was a Thoughtsteal, which I used to copy his last card -- an Echo! I was able to play it to copy a Cultist, Blademaster, and Alexstrazsa (he couldn't BGH it until the next turn since he had just drawn the BGH off his Coldlight last turn)! Even though he was able to Echo a BGH, Healbot, and Illuminator with Ice Block up and full health, since I knew he had no burn left, I was able to let my life get low, Alex up to 15 to buy 2 more turns, and hit him in the face for enough damage that his fatigue killed him through Ice Block!
Despite the 20 minutes of utter boredom leading up to that end game, I came away with quite a positive feeling after the match.