Iron Thorns costs 70 Pack Points to craft
So with Glistening Oil, you're giving an enemy creature Infect, staying safe from the poison counters yourself, all the while gaining life from having it on the field
Its rising PSA 10 value suggests increasing scarcity in high grades
The box was also sealed and in great condition, which means all the cards inside are likely to be in what's called "Gem Mint" condition, the most valuable grading around for rare cards
Nosepass, too, has a unique move which prevents all damage depending on a coin flip a very helpful stalling tactic
Being situationalthat is, requiring your opponent to have an artifact worth killingis an inherent weakness of artifact removal, which is why flexible removal that hits multiple card types gets valued highly