back of yugioh card - Official Duelist Sleeves Yu-Gi-Oh! (AE) Damaged Card –

For cards worth under $20: Sleeve the card, place it in a penny sleeve, then a top loader or card saver Slide the top loader into a team bag or tape the opening closed Place in a rigid, padded envelope or use a bubble mailer Include tracking on all shipments For cards worth $20-$100: Double-sleeve the card and use a top loader Place in a rigid cardboard mailer to prevent bending Add insurance through the shipping carrier For cards worth over $100: Triple-sleeve, top loader, and place inside a semi-rigid card case Use a small bubble mailer inside a rigid box Purchase carrier insurance for the full declared value Use signature confirmation for anything over $250 Shipping damage claims are a hassle to win

A PSA 10 auctioned for a cool $90,000 in mid-2020 (Source)

Incidental effects carry more value because they impact the board

Rare cards have an extremely limited supply (only 39 Pikachu Illustrators were ever made), theyre physical objects with nostalgic and cultural significance, and theyve demonstrably appreciated in value over time

Oh, and of course theres a new Shiny Charizard card