debit card sleeves 10X RFID Blocking Secure Credit ID Protector Anti Theft Scan Safe Holder Blocker Identity Prevention Aluminum Foil Slim Silver Safety Durable and portable. valonic set of 6 RFID

a hieroglyph pattern on the card edge

I folded my fabric over, so I just had 3 raw sides

That means two +1/+1 counters at the minimum, and usually much more than that

Theres Treasure and other expendable tokens, and there are plenty of other demons with sacrifice outlets built into their text

Lorcana First Chapter Starter Deck

printing at normal card sizes means you can use normal card sleeves, which is nice (a non issue here, but something to think about when making your own stuff) and a d&d specific thing, a few spells need like 3 pages to fit the full text, even without a picture, so if you want cards that fit together, cards without images should probably be possible (i dont know the card generator, so it might be a non-issue here too)