Mega Pokemon
Mega pokemon are pokemon that have an extra evelution. The pokemon and the trainer must have a strong bond and the evelution only be used in a battle and the pokemon changes back to their original form.
Shinies
Shiny pokemon are pokemon that are an unusual colour. These pokemon ore extremely rare and are considered very valuable.
Greninja
Greninja is the most popular pokemon in the entire world. Ash's greninja has a special trate though. Ash's greninja has the bond phenomenom. The bond phebomenom is a special power-up pokemon get when them and their trainer have an extremely strong bond. This is so rare that people didn't even know it existed.