Designed to perfectly pit the size of your card, on their own they won't do much, but when combined with an outer sleeve can provide double the protection I've spilt mugs of tea on my double-sleeved decks before, and thanks to the inners, they've been absolutely fine
Double-sleeving is the best way to protect your cards
Send 1 "Seventh" Normal Spell from your Deck to the GY
Duelists closely following the simulcast of Yu-Gi-Oh
To get your hands on all the cards needed for these decks, you will have to get to grips with how to craft cards in YuGiOh Master Duel
C Common Rare Value X SPELL If you control 2 or more "Crystal Beast" cards in your Spell & Trap Zone: Your opponent chooses 1 "Crystal Beast" card in your Spell & Trap Zone, you send it to the GY, and if you do, you draw 2 cards