"And now Ash has had Noctowl use Sky Attack. It's powerful, but it needs time to charge, which naturally gave Shuckle two chances to use Withdraw. That will raise Shuckle's defense to a frightening level."
"Next, Shuckle might keep boosting its defense until it reaches the maximum, or it might use Power Trick straight away to swap its defense and attack. That would give Shuckle terrifying attack power, and that's when it would start attacking!"
"And Shuckle is widely recognized as the slowest Pokémon, so Gyro Ball, a move that becomes more powerful the slower its user is, would naturally be its first choice!"
By the time Brock reached this point, Shuckle had used Withdraw for the third time. Noctowl's Sky Attack struck Shuckle, only to bounce right off. Even though Dawn and the others had heard Brock explain what might happen, they still looked stunned at the sight. Jun even cried out, "You've got to be kidding!"
Just then, Kouhei ordered Shuckle to use Power Trick.
"He really used it!" Jun said gravely.
"Then won't Gyro Ball be next?!" Dawn asked, sounding worried.
On the battlefield, Kouhei immediately ordered Shuckle to use Gyro Ball against Noctowl's Air Slash. It broke straight through the attack and slammed into Noctowl, sending it flying. Fortunately, Noctowl was still able to battle, and Ash recalled it at once.
Ash sent out Donphan next and immediately had it use Rollout, deflecting Shuckle's Sludge Bomb. But Shuckle's ensuing Gyro Ball grazed Donphan, changing the direction of its roll and sending it crashing into a raised patch of turf. Seeing this, Ash took out a Poké Ball and recalled Donphan as well.
"Gyro Ball is really tough to deal with!" Jun frowned as he tried to think of a solution.
"He's making excellent use of a