Other than the pull rates and the icon at the bottom, they look similar to each other, though often the higher rarity cards also include better play mechanics
With single Collector Booster packs selling for $100, this Collector Booster sampler was a fun way to get a tiny taste of the action (like a drop of water in the desert, but still)
When you do, add its power to this creature's until end of turn.) Whenever a creature you control attacks, if it enlisted a creature this combat, the creature that attacked gains double strike until end of turn
Honestly, just being a five-color, two-mana pseudo-Amulet of Vigor in the command zone is probably enough for Wandering Minstrel to see heavy play
Additionally, theres a subset of cards that is available in retro frame but only in the Collector Booster, because they are not fun in Limited or are part of strategies that arent supported in the Draft Booster experience