Lorcana TCG cards can be pulled from Booster Packs, which come from a variety of different products like Booster Boxes, Treasure Troves and Gift Sets
These are meant as cheap, playable decks for players, not so much collectors
The constant stream of free spells off the top of your deck is just too much value for your opponent to deal with, and the ability to hit your opponent for 10 life with Kefka's Tower shouldnt be underestimated either
As for uncommon payoffs, the deck has some nice legendary creatures like Uncommon payoffs like these are a real draw for an archetype like this since you'll have cornered the market on them
The set is definitely flavor-forward, but remember that this Universes Beyond crossover is passing through Standard, so you'd hope something from the best-selling set of all time breaks out in the format
You can Shift this card on top of another Hiro Hamada to play it for five ink