sleeve for cards Protective Sleeves – CREO %3CBR%3E%3CBR%3EDetails Card sleeve - Wikipedia

With an incredibly wide variety of support cards, this card can be paired with related monsters to create a flexible battle strategy

So, its more for the collectors rather than the players

C Common The Dark Magicians X DARK Level 8 [ SpellcasterFusionEffect ] ATK 2800 DEF 2300 "Dark Magician" or "Dark Magician Girl" + 1 Spellcaster monster Once per turn, if a Spell/Trap Card or effect is activated (except during the Damage Step): You can draw 1 card, then if it was a Spell/Trap, you can Set it, and if it was a Trap or Quick-Play Spell, you can activate it this turn

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If you don't feel such a thing, and the card is just smooth or rough like sandpaper, you are faced with a fake Chinese Yu-Gi-Oh

Kaiba tried talking him out of it, believing Mokuba to be no match for Yugi, but Mokuba insisted and took the role anyway in the hopes of winning Seto's respect