They shut off passive abilities, activated ones, on death triggers all while rendering the target pretty pointless in combat
This card's age makes it the most difficult to find in NM condition, with no recent sales in that condition on TCGplayer
Furthermore, the holofoil bleeds into the artwork, which is not supposed to be the case for reverse holo cards
Measuring the value of life invested in creatures is pretty easy, since life is a resource that has value we work with in so many other areas
For me, the most durable of the Silver Bordered cards are those that actually fit alongside cards printed since, cards that arent wacky or out of place
A sophisticated enough RNN could create entire expansions with new mechanics