"How do you teach kids how to play Pokémon effectively?"

My little brother thinks he's the shit because he has a Primal Groudon and wanted to battle me. I OHKO him with a Greninja. He's still in a rage about it because he thinks "legendary Pokémon are supposed to beat normal Pokémon". My Greninja is properly EV trained with 252 speed, 252 sp atk and 4 def. With the moves Ice Beam, Hydro Pump, Extrasensory and Dark Pulse. Of course he's going to win against a freshly caught Groudon. Not to mention I have splash plate and he has 0 held items on his team.How do I teach an 11 year old about IV's, breeding, EV training, natures, stats relationship to moves, type matchups, held items etc? He seems to be in the mindset that you can level any legendary to 100 and have the most powerful team. via /r/pokemon https://ift.tt/2J5v9CT