How do you put a price tag on a legacy like id Software's?

If Xbox can't find the value in owning the beating heart of the first-person shooter, perhaps it shouldn't be in the ...
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How to Get Cursed Spirit Manipulation in Kaizen

To unlock Cursed Spirit Manipulation in Kaizen, purchase it from the Permanent Cursed Techniques section via Dr. Shiro Kato for 3,750,000 Yen, 50 Grade 2 Cores, 35 Grade 1 Cores, 25 Cursed Nucleus, ...