Mulligans
General Mulligans
These are the best cards to start the game with, in order of importance. Occasionally consider keeping Branching Paths, Kael'thas, or Overflow in the starting hand, especially against slower decks or if you have a clear path to play them early.
Aggro Mulligans
Prioritize the Jasper Spellstone against more aggressive decks. You can outpace aggro in the midgame with tools like Kael'thas, Ironbark, and Spreading Plague.