rfid blocking card sleeves Aigee 28 (24 Credit Protector Holders in 12 colors & 4 Passport Protectors), Identity Theft Protection Secure Sleeve for Credit Cards, Debit Card, 2pcs Clear Plastic Sleeve Beware of imitations that arent made by Identity Stronghold RFID Funky Bright Individual Credit

You can only use this effect of "Guardragon Shield" once per turn

Classic Sleeves - Clear $12.49 12.5 /count $1249 current price $12.49 12.5 /count Dragon Shield, Standard size TCG card sleeves, 100ct

Just throwing one or two cards into the remaining space in the deck won't do anything, so if you want to make it work properly, you have to be intentional about it and create a deck

[spoiler=Dangan Snow Soldier] Lv3 WATER Warrior/Effect ATK/1300 DEF/1000 When a face-up "Dangan" monster you control is attacked, you can special summon this card from your hand: place 1 Bullet Counter on that monster, and another on this card

This consistency allows for 004 to come out easily and act as a hard wall against an opponent that can't destroy it by a card effect