Standard Deck Tech: Koraidon ex - Archetype with Promising Future

Koraidon ex - Pokemon TCGL Code

Pokemon TCG - SV1S - 050/078 (RR) - Koraidon ex

Koraidon ex - 231/198 - Full Art Secret Rare

Pokemon Scarlet and Violet - KORAIDON EX GOLDEN HYPER RARE - 254/198 NM/M

Pokemon Paldea Legends Koraidon ex Tin (5 Booster Packs,1 Promo Foil Card & More)

Koraidon ex / Miraidon ex Store Oversize Promo Card Revealed, PokeGuardian

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

Pokemon TCG Scarlet & Violet Koraidon EX Gold Full Art Hyper Secret Rare 254/198

Starter Deck & Build Set Ancient Koraidon ex Scarlet and Violet sv Pokémon Card Game - Meccha Japan