#2 Switch off the "Switch" battle style
Open up the options menu. Scroll down to Battle Style, and switch it to Set instead of Switch. In the default Switch mode, you will be asked to change Pokemon after every creature you defeat, giving you an unfair advantage over opponents. With Set on, you won't be given this option and, if you want to change Pokemon, it'll have to take a hit to come into play.
Pretty straight forward, right? This is a must for those who want challenging Pokemon battles.
