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Route 6 (After surfing to rocky ground and using rock climb)

Gyro Ball's damage increases as the user's Speed stat lags behind the target's. The base power formula is: Base Power = min(150, 25 × Current Speed of the target / Current Speed of the user + 1). All modifiers (e.g., stat stages, paralysis, held items) affecting Speed are considered. Effects altering movement order, not Speed (e.g., Trick Room, Stall), don't affect Gyro Ball. If the user's Speed rounds down to 0, it's treated as 1 to avoid division by 0. The max base power is 150 when the target's Speed is 5.96 times the user's Speed or more.