To be honest, while this problem affects new players the most, the case of Yuffie isnt something that can only affect new players
In Limited (Draft & Sealed), where you build from random packs, rarity is a rough proxy for power
The Aladdin and Cruella starter deck is a Ruby/Emerald deck that excels at buffing your characters, stealing lore from your opponents, and controlling the board through songs, items, and Evasive characters
You can see it in the video from Arithon Hanzo below and pictures above, and the tape patches looked specifically made not just pulled off of a roll of sticky tape
Now fixtures of Sapphire and Amethyst decks, the combos you can pull off with the right moves are dizzying: Goat Merlin on the board for one lore
That said, for some MTG players, finding this deal isnt just a plus, but a necessity