I played game as Diablo against Warlock with the 1 mana discover and discard + draw hero power. One of his passives was the one that set expensive minions cost to 5. I dont remember his second passive, but on turn 5 he suddenly played completed C'Thun the Shattered and dealt 30 damage to me. I was so shocked i didn't even take a picture. He did't play a single part of C'Thun. I won in the end, but I still have no idea how he did it. Any ideas?