Whether its due to the amazing artistry and illustration of the card itself, its potential power in the competitive scene or overwhelming nostalgia, there are a lot of reasons why certain cards become more valuable than others
(They won't untap if they have stun counters.) While you control Fear of Sleep Paralysis, if a permanent an opponent controls with a stun counter would untap, it doesn't untap and the stun counter isn't removed
Being able to be such a disruptive one-unit army that forces opponents to interact with you on a different axis is fairly difficult, and there are a handful of games where Karn helps you interact with your opponent in exactly the right way by grabbing the artifact best-suited for the situation
This card stands out for its enduring fan appeal and design consistency, both of which support stable, long-term collector demand
Current Market Price Commander Masters Printing: ~$35.00 Commander 2017 Printing: ~$38.00 (based on historical data, as its less available) Commander Masters Borderless Printing: ~$44.00 Yuriko, the Tigers Shadow Yurikos power comes from her ability to cheat the commander tax
I fully acknowledge that the Commander community has grown such that there are huge amounts of people who enjoy facets of the format that might not be my cup of tea