Heck, all you have to do is incidentally mill the Leviathan into your graveyard to get a shot at it later, and Heliod forbid you ever combine it with Ghostly Flickers or Deadeye Navigator
You can also add another Aladdin, Heroic Outlaw to make sure you find this high-impact character more often , and replace some of your early game cards like Horrace, No Good Scoundrel and Mickey Mouse, Steamboat Pilot with additional copies of Cruella De Vil, Miserable as Usual
I went with Conclave Mentor as I havent been able to use it before, as it's the Selsyna colour identity, limiting which decks it can go in
One of the ways Konami did this was to introduce new monster types every so often to add more variety and lore to the many universes found in the franchise
There are two exceptions to this, specific Shiny cards which are earned in different ways: Shiny Mewtwo ex: A promo card and part of the Paid Poke Gold Package in the shop
Sealed sets command 2-3x the value of opened but complete sets