XY Black Star Promos #XY46/211
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Cardmarket currently provides a trend price for of about €18.14. Treat it as a live reference, not a guaranteed sale price or appraisal.
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Cardmarket rolling averages supplied with this exact catalog record. These are market references, not guaranteed sold prices.
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Instead of a generic compound-interest calculator, this model starts with the exact card's current market reference, short-term market trend, and Diamond Finder Collector Index.
Model estimate, not a guaranteed future value. It does not use eBay sold comps yet, and no projection should be treated as investment advice.