how to tell how much yugioh cards are worth Could you help me by telling me these please? how much are holographic yugioh

I went down a rabbit hole to find a new set to collect, to scratch my nostalgic itch, when I stumbled across some incredibly rare GAME BOY promo cards that launched in the late 90s and early 2000s , specifically designed to promote the GAME BOY handheld video games

1 2 "Pokemon of the Day: Wooper (#194)"

Reign of Jafar Launches the First Week of June 2025 Disney Lorcana Set 8, Reign of Jafar Pre-Releases May 30th With An Official Release June 6th Lorcana fans who saw firsthand just how villainous Ursula could be with the Hexwell Crown in her hands, stand back because Jafar is about to take villainy to a whole new level

10 Harpies Feather Duster Tournament Pack 8 $699.98 A Modern Staple From The Past Harpies Feather Duster is one of the best staples for any Yu-Gi-Oh