pokemon card staryu (84/123) [HeartGold & SoulSilver: Base Set] – Galaxy Games LLC Pokémon Hit Points50 HP Form Staryu Full Art - Etsy

If you are unfamiliar with regression, you can read a basic explanation here

It's hardly a shock to anyone paying attention to Pokmon TCG that these price hikes are occurring, especially with such fervor from fans to find these particular cards in the set, which is why many investors are treating the Scarlet & Violet 151 Booster Bundle as a "legacy asset": a "piece of history" that is more valuable stored as is rather than opening packs looking for a rare card that may get lost or, as we used to do back in the day, traded to a poor kid who has no idea that their Charizard card was, in fact, far superior to a lousy Caterpie card

Aggravated Assault Akki Battle Squad Aurelia, the Warleader Aurelia, the Warleader Breath of Fury Bumi, Unleashed Combat Celebrant Full Throttle Fury of the Horde Godo, Bandit Warlord Godo, Bandit Warlord Great Train Heist Hellkite Charger Illusionist's Gambit Karlach, Fury of Avernus Lightning Runner Moraug, Fury of Akoum Najeela, the Blade-Blossom Najeela, the Blade-Blossom Najeela, the Blade-Blossom Overpowering Attack Raphael, Tag Team Tough Relentless Assault Savage Beating Scourge of the Throne Sokenzan Swinging Ship Swinging Ship Take the Bait Tifa, Martial Artist Waves of Aggression World at War omer, Marshal of Rohan

Hence why Mox Diamond, Karn, Silver Golem, Masticore, and Memory Jar were contained within the From the Vault: Relics supplement released in August of 2010