That alone makes the card worth between $130 to $175
When synthesizing this list, I was looking at cards that are asymmetrical in their effect, hard to interact with, or have little ways to remove or stop them
Bubble Snare, Capture Sphere, Castaways Despair, Charmed Sleep, Claustrophobia, and others usually cost three or four mana, and tap down a creature and keep it tapped down
However, when it comes to their out-of-the-box power level and capacity for upgrades, some of the Duskmourn precons are a little less The Shining a little more Sharknado
Having these proxy decks/cards gets me unique artwork that I like and allows me to run proxies of cards I already own and may be in other decks or too expensive to play daily
Nezumi Bladeblesser is at its best if you control both an enchantment and an artifact, but its still worth it when you just have one of them