exact fit vs soft card sleeves – Vault X US known for its clarity and usability VaultX exact fit sleeves :

During your Main Phase: You can Fusion Summon 1 Fusion Monster from your Extra Deck, using this card you control and other monsters from your hand or field as material

Written and illustrated by Akira It, under supervision by Kazuki Takahashi, Yu-Gi-Oh

The catch is that one-touches come in a wide range of thicknesses 35pt, 55pt, 75pt, 100pt, 130pt, 180pt, 260pt, and 360pt and a generic "one-size" sleeve ends up too loose on the thinner holders and too tight on the thicker ones

If a "Doremichord" Monster(s) were to be destroyed by your opponent's card effect while you control an odd numbered Pendulum Scale, you can destroy this card instead of 1 of those monsters