you have just woken up on an island. You don't know how you got there. After standing up, you feel something in your pocket. Taking it out, you find that it's a piece of paper telling you what to do

"your challenge is simple. Defeat the four Pokémon on this island to be rescued. But beware, they have the same challenge"

you walk into the trees of the island, and soon enough, the Pokémon jump out of the trees one by one. The Pokémon are Gardevoir Vaporeon Lopunny and Salazzle they seem to have all of their powers to defeat you. But that also means that they also kept their weaknesses for YOU to defeat them. They are very ready to fight