If youre looking for valuable cards, keep an eye out for: Holographic and Full-Art Cards These cards often have higher demand and are more collectible
Padded or Rigid Covers A lot of people skip this detail, but a good cover is your first line of defense
Getting a little group together to draft means you can all walk away with some new Commander cards, and have a great time just playing the game and drafting
Finally, the fit for standard sized cards (which covers games such as the aforementioned MTG and Pokemon, as well as other titles such as Disney Lorcana, Flesh and Blood and Achroma) is ideal too so you wont have any problems with cards sliding out of or otherwise moving around within the sleeves
Swords to Plowshares on a creature is just amazing, especially in the color with flicker effects
The Pokmon card that is worth $20,000 is the Base Set Charizard (1st Edition Holographic)