Start by loosening the back flap of your foil pack. Slide your finger underneath the flap and gently slide it up to loosen it from the top of the pack.12 Mar 2021
How do you clean Pokemon cards without damaging them?
https://www.youtube.com/watch?v=a5SIMXRwPGg
What makes a Pokemon card damaged?
If more than 30% of the card is damaged by liquid, it's considered Damaged. Cards in Damaged condition may have extreme border wear, extreme corner wear, heavy scratching or scuffing, folds, creases or tears or other damages that impacts the structural integrity of the card.