Simplify the following text for a Grade 7 native English-speaking person.
Original: The PokÃ mon Trading Card Game is a collectible card game with a goal similar to a PokÃ mon battle in the video game series . Players use PokÃ mon cards , with individual strengths and weaknesses , in an attempt to defeat their opponent by `` knocking out '' his or her PokÃ mon cards .
Simplified: There is also a special kind of PokÃ mon in the trading card game called `` ex '' PokÃ mon. ex PokÃ mon are stronger than regular ones , but when they are knocked out , the player 's opponent draws two of their prize cards ( with regular PokÃ mon it is just one . )