Cards with creases, white edges, scratches, and other obvious signs of damage are pretty much impossible to sell
You want card quality to get in the way of your ideal curve as little as possible
Mana Crypt (Kaladesh Inventions Series) The most valuable Magic card not on the Reserved List, Mana Crypt is valuable for similar reasons as Mana Vault and Sol Ring: it can easily add a lot of extra mana to the mana pool and enable some explosive early plays in a game
This version of the card was the first edition sold in China and is considered to be one of the more exclusive editions
I'd put it third today behind Thalia's Lancers at the two spot, but it's still a very strong card, and the madness just makes it sing
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