Panini's Chronicles set has so many different offerings that as a baseball fan you may look at it and say "WTF is this set?"
Well as someone who doesn't collect much football or basketball it is kind of fun to see what collectors of those sports get full fledged out sets of. Baseball fans can't get Spectra, Prizm, Contenders, or Noir. Chronicles solved that by releasing those sets as inserts.
LOOK at this green Spectra insert from 2018 Chronicles I grabbed for a winning bid of only 99 cents.