contactless card security sleeve Aigee 28 RFID Blocking Sleeves (24 Credit Protector Holders in 12 colors & 4 Passport Protectors), Identity Theft Protection Secure for Credit Cards, Debit Card, 2pcs Clear Plastic Sleeve Advanced TSV RFID secure sleeve designed to protect credit cards Card Guard | RFID Sleeves

While this wont trigger their on-summon effects, this is still an additional 2400 points of attack on your side of the board, and at the very least its more tribute fodder for your other Monarchs

Also, just by having it in the Graveyard, you can keep the opponent's removal effects in check

I dont think it ever reached critical mass though, but it wouldve been a fun thing to do On topic, last time I semi-organized some cards, I found all the unique sleeves Ive received with cards and put them in a pile together

CCG: Booster Box: 25th Anniversary Rarity Collection (24CT)Features:-Limited edition-2 Super Rares-1 Secret Rare (with a 1-in-4 chance of being upgraded to a Platinum Secret Rare or Quarter Century Secret Rare)-2 Ultra Rares (each of which has an individual 1-in-6 chance of being upgraded to a new Prismatic style Collectors Rare or new Prismatic style Ultimate Rare)-And with every card available in every rarity, you can collect matching copies, or mix and match the rarities of your favorite cards!

(1) If this card is Special Summoned by a monster effect or Normal Summoned: You can pay 2000 LP

In the anime, however, the "Destiny Board" has a better shot of being completed