Across all categories, card value usually comes from: Scarcity (low print runs or no reprints) Demand (Commander, Legacy, collectors) Condition (graded cards sell higher) Aesthetic appeal (art, foils, alternate versions) Historical importance (early sets, iconic cards) How to Sell Magic: The Gathering Cards Safely If your cards have value, you can sell them through trusted channels
Even more unexpected was how big the gap in quality was between the two decks
Lastly, there are some assassin cards that tie into specific non-assassin themes such as Lys Alana Scarblade in elves, Goblin Assassin in goblins, Silent Assassin and Rathi Assassin in mercenaries, Unliving Psychopath in zombies or equipment decks, or Hunter of Eyeblights and Massacre Girl, Known Killer in -1/-1 counter decks
If you're playing Commander, also note that this is one of the few lands on this list with a specific color identity: You can only play it with 5-color commanders
But this is extremely unlikely
These include Bennie Bracks, Zoologist, Adrix and Nev, Twincasters, Chulane, Teller of Tales, and Koma, Cosmos Serpent