That kind of redundancy among combo cards is a boon for any deck, but its not even that easy to take those individual pieces out, as anyone who has played against Cat Oven combo in Constructed will tell you
As insane as these prices are, once the Hatsune Miku Winter Secret Lair is out of circulation, these prices seem poised to increase, since players presumably wont be opening these Snapcaster Mages much anymore
Ugin is at least the most deflating card of the year, coming down to sweep away all the work you did building a board earlier in the game and likely leaving behind a massive high-loyalty planeswalker to boot
Defense Grid makes it very unlikely that your opponents will have the mana available to deal with Zada as well, and honestly is probably the single best protection this deck could run
It is a great option for sealed One Piece collectors, display shelves, card rooms, vendor tables, and card shop displays
Proper storage of sleeved cards is also crucial