The card type was introduced in Future Sight as tribal on Bound in Silence, and more cards were printed in sets like Lorwyn and Rise of the Eldrazi
However, their prices are usually driven by ultra-rare Pokmon cards, competitive relevance, special artwork, or short-term market trends rather than age alone
However, the value of a trade completed recently makes that look like a bargain
This is unbelievably easy to achieve in formats like Modern and Commander, with the latter even having a turn cycle that comprises 4 people, meaning that Wan Shi Tong can become a powerhouse if left unattended
Quick note : The prices listed are based on TCGPlayer Market Price at the time of writing and will fluctuate over time
It provides the ability to grind out when you run out of cards, almost giving you an extra card draw each turn, but better, as it's a permanent of your choice from your graveyard, nulling any efforts by your opponent when using removal spells