This is the Rosty Top 10 Legend Karazhan Control Warrior Deck Sep 16 he was playing on stream and trying to hit rank one with.
Control Warrior is strong in the current META, its main weakness is against aggressive Hunter lists. But apart from that they can hang with all the other classes.
The control mirror is one of the most annoying and time-consuming match ups in Hearthstone. Playing against this isn’t much fun either as you feel yourself slowly losing as every turn passes. Hopefully this list doesn’t become too popular. 🙂