So let's start with the former: What Exactly Are These Cards
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Japanese Kuzan Championship Top Prize #096 Awarded only to top competitors at high-level events, this Kuzan Championship Prize card stands out due to its limited availability and the prestige associated with earning it
eBay offers users the option to scan their cards in its app, which then displays a price guide with "up to two years of actual eBay sales data and PSA population insights for both raw and graded cards, providing a clearer picture of the market value of a trading card." Those buying an ungraded card through eBay also have the option to have it graded through PSA, he added
They're the card's age, condition, artwork, and availability
The next step depends on your personal preference