Use Lillie to keep Charizard ex alive, and dont forget to give it the Giant Cape for extra HP
Some have risen to fame for their sheer power, like fetch lands and shock lands, not to mention the original dual lands
The demand is so high it doesn't matter how much of the new sets are printed, they will instantly get eaten up because of the massive demand. It's basically turned a hobby into a gambling addiction for many
Always prioritize trainers that are going to help you with consistency
There are over 100 of these side quests, and they involve all sorts of tasks, such as battles, catching certain Pokemon, teaching Pokemon specific moves, trading, evolving, acquiring certain items, doing parkour, and a lot more