ORACLE OF MUL DAYA Now were starting to get into the elf-iest of the elf-est cards there are, and while the top two are firmly set in stone, I would actually go as far as to say that Oracle of Mul Daya is also one of the most iconic elves ever printed, despite it not being played competitively in any format for quite some time now, given Amulet decks got given way more new toys in the last few years with cards like AFM s Karn
Japan is getting its version of this set, Shiny Treasures ex, a lot sooner, cards going on release December 1
If youre interested in trying to track down some Costco bundles, its best to start searching sooner rather than later
I'm not sure, from the way you've worded it, whether the Synchro Monster would lose its own effect, or just gain new ones, but overall, fairly balanced
Magic: The Gathering Common (Black symbol): These cards form the foundation of most decks and are easily obtainable