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Pokemon Card 2023 Scarlet Violet: Start Deck -Fighting- Koraidon ex – miyabihobby

Pokemon TCG Koraidon EX 125/198 - Scarlet & Violet Rare Holo

Can someone explain to me how my Koraidon ex shot up in value over 160% overnight? Was a $145 card, is now $454?? This doesn't usually happen…right? Usually as time goes by

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