In fact, there are several types of folders for storing maps, such as: Top Loading These folders contain pages to which you can add cards through the top of the envelope
Marcy: A very conditional removal on a body that may help the opponent out, although it is important to note that in a self-mill or Manifest deck, you can use this on your own creatures
As the Deck technically does not need to rely on the Extra Deck, players can rely on using Pot of Extravagance without having to worry at the trade-off of banishing a boss monster you can end up needing later in the turn
A low PSA 10 population on a card with strong demand means your graded copy is actually scarce
While the +1 is far less relevant in a deck that plays so few sorceries, being able to rebuild after a board wipe by returning your most powerful creatures back to your hand can give aggressive strategies additional reach
If you hold out in hopes of selling a raw card at a higher price down the road, you may end up taking a heavy loss if it doesnt possess the rarity to continually appreciate in value