The Rocket is a spell card available from Arena 3. With a cost of 7 Elixir, the Rocket starts with 700 area damage and 280 Crown Tower damage and is upgraded up to 1792 area damage and 717 Crown Tower damage. The Rocked is very effective in destroying building cards such as the Goblin Hut and the Barbarian Hut. It is not a good idea to draw the Rocket on troops with low hitpoints or on fast troops. Clash Royale says: “Deals high damage to a small area. Looks really awesome doing it. Reduced damage to Crown Tower.”