as those in the know know, pokemon is another game that came out of japan and ended up influencing the whole world. the mechanic at the heart of pokemon is actually the same as rock, paper, scissors.
rock crushes scissors, scissors cut paper, and paper wraps rock. the beauty of the system is that no option is absolutely superior. pokemon took exactly this idea and spread it across dozens of types. fire burns grass, water puts out fire, electricity zaps water, and ground completely nullifies electricity. then, once types like ghost, dark, fairy, and dragon enter the mix, you end up with a balance system that takes years to memorize.
that's why pok3mon was never just a "let me grind the strongest pokemon" game. the right matchup is often more decisive than level or stats. anyone who saw for the first time that an electric attack has no effect on a ground-type pokemon learned it the hard way.
maybe this is one of the reasons the series has lasted so long. it doesn't keep making the player ask "which is the strongest?" instead, it gets them thinking "which is the right choice against the one in front of me?"
and when you take the balance that rock, paper, scissors builds with three options and adapt it to hundreds of pokemon and dozens of types, you end up with gameplay that stays fresh even after thirty years.