>>34116085here are the big changes
>new type, Fairy, introduced in Pokemon X/Y to balance Dragon-type>it's good against Dragon, Dark, and Fighting>resisted by Fire, Poison, and Steel>weak to Poison, Steel>resists Dark, Fighting, Bug>immune to Dragon>Some older Pokemon became part Fairy-type, like how Magnemite became part Steel-type in Gold/Silver>some Pokemon have access to Mega Evolutions - which are sort of temporary evolutions they get during battle, which boost their stats, and change their abilities and sometimes types>you can only activate one per battle, and the Pokemon has to be holding a special item, meaning it can't hold any other item at the same time>Pokemon Sun/Moon introduced Z-moves, which are basically heavily strengthened versions of normal moves>like Mega Evolution, you can only do it once per battle, and the Pokemon requires a special item, so it can't hold another one at the same time>but unlike Megas, any Pokemon can use Z-moves>and some can be used defensively too (for example, Z-Fake Tears raises the user's special attack, in addition to lowering the opponent's special defense)if any of this needs to be cleared up, don't hesitate to ask the thread