Beyblade
Day of the Dragoon
S1 E2:
Tyson battles Kai one on one, but to his surprise, Tyson quickly loses. The Chief informs Tyson, that in order to beat Kai, you need a strategy, so Tyson goes home in an attempt to practice until he's perfected his fighting technique. Later that day, Andrew and Kenny, along with Dizzi show up and attempt to increase the power of Tyson's blade to match that of Kai, but with little success.