Zombie World Decks abuse the Graveyard and rely on powerful Extra Deck Monsters, so having those unaccessible cripples the Deck by a mile
This is mostly to avoid the look of impropriety, as being able to see the back of the card means theres the possibility of marking (i.e., putting marks on certain cards so you can tell when they pop up in your deck without drawing/scrying them)
The Pokmon video games, in particular, have been a significant part of Filipino gaming culture, with many of us growing up with our hands clasped around Nintendo consoles, journeying through pixelated realms in search of these enchanting creatures
In this region, some of the Pokmon and vegetation will appear to have a special glow
All of that plus a few cards that fall just under the $2 mark and all of the new cards, some of which I can only assume will have a more interesting price tag soon