Weather Ball is a Normal-type move with 50 power and 100% accuracy under normal conditions. However, its type and power can change based on the weather. During Sunny Day, it becomes a Fire-type move, during Rain Dance, it becomes a Water-type move, during Hail, it becomes an Ice-type move, and during Sandstorm, it becomes a Rock-type move. In all these weather conditions, its power doubles to 100. This unique adaptability makes Weather Ball a versatile option in weather-based teams, allowing it to exploit various weather conditions effectively.