I Just Became a Pokémon Master, What the Hell Is the Counterattack System?

Jiang Che traveled to a parallel world with Pokémon and found that there was no Goldfinger. He relied on the memories of Pokémon in his previous life to cultivate Pokémon honestly. Finally, Jiang Che cultivated six powerful Pokémon, passed all levels, and became the Pokémon Master of the world. However, a system suddenly appeared, saying that Jiang Che could counterattack and become the strongest Pokémon trainer. It's just that Jiang Che fell into deep thought while looking at the system tasks. "Ask the host to defeat the fishing enthusiast who has three Magikarp." No, the delay in your system is a bit serious.