Control Mage is back with the new Karazhan cards. This is an interesting list, it’s the Neviilz Karazhan Control Mage Deck September 16 he was playing on stream. The list includes Medivh’s Valet, Avian Watcher, Babbling Book, and The Curator from the new adventure.
Like most Neviilz decks there are a lot of tech cards and synergy between different cards in the deck. The double Ice Block means you’re often playing on the edge of dying, then using Alexstraza to gain health and let your opponent over extend so you can board clear.