Another benefit of this is that no-ones deck can have an advantage simply by paying more for the most expensive or rarest Lorcana cards - everyone starts on the same footing, having to build their deck from whatever they pull from the booster packs
Liesa, Shroud of Dusk can also shut down decks that monopolize game time by punishing players looking to cast their entire deck in one turn
Invite friends, track standings, and crown champions
Combo and aggressive decks use that exchange to close games before opponents can stabilize
While Altar Ibn-La'Ahad can do this, the card The Animus can as well to be able to get Assassins exiled without ever actually attacking
The listing implied (without explicitly stating) that these pictures were representative of the collection, like whoever took the pictures just flipped to random pages which just happened to contain multiple cards worth over $100