The document provides 7 tips for players who want to improve at Hearthstone and potentially compete at the Blizzcon tournament. The tips include: 1) Playing the practice missions and acquiring cards; 2) Building your own deck by combining cards; 3) Playing the expansion to learn new cards and strategies; 4) Playing online and watching matches to learn strategies; 5) Overwhelming opponents by having many cards on the field; 6) Healing characters, protecting them, and attacking as much as possible; 7) Not getting overwhelmed and practicing to improve. The document encourages practicing Hearthstone and offers contact information for questions.