Most Major League pitchers can consistently bring velocity into the 90-95 mph range and have an assortment of secondary pitches in the bag of tricks. But fewer of them have that one pitch.
You know that one pitch. It's the one that consistently baffles hitters or has them looking already defeated in the batter's box. It's that pitch that breaks bats and has the opposition analyzing video for any sign of weakness.
It's just plain special, and everyone in the ballpark knows it.
In other divisions, that one pitch could be Shohei Ohtani's split-fingered fastball, Aroldis Chapman's triple-digits heater or Kenley Jansen's cutter.