yugioh cards with 4000 attack Obelisk the Tormentor FOIL Limited Edition Yu-Gi-Oh! 4000 ATK Monster Cards |

[8] The Wizards of the Coast tournament rules require that a deck including Alpha cards have opaque card sleeves to prevent a player from being able to identify the difference between an Alpha and a non-Alpha card in their library, as the corners are different from all the printings that followed

Unsurprisingly, Wizards of the Coast was not too happy about this detail

Naturally, the sets single Mega Hyper Rare is up there, but its actually not the most pricey card on the resale market yet

You can place most of your cards within a Pokmon tin, which will keep them safe far more effectively than tossing them in a drawer somewhere