zeraora v pokemon card Battle Deck Rapid Strike Zeraora V (Full Art) 165

Three main factors determine value: rarity (Secret Rare, 1st Edition, etc.), condition (graded on a 1-10 scale where PSA 10 is flawless), and demand (popularity of the Pokmon and competitive playability)

As mentioned, a fake card will feel different to a genuine card

World Championship Decks: Since 2004, Pokmon has released replica decks of the World Champions' winning hands

I cast a turn-one Telepathy, and the new player scooped his cards up and left, saying I dont play against Telepathy, it just reveals everyones game plan and then another player can backseat game once they see someone has a victory cinched up. He proceeded to walk away for five minutes, then returned and backseat-gamed us until he saw a winning hand

Whereever you're buying these, just note the value may continue to rise, or crash unexpectedly

Lets take a look at a couple 18-land decks to get us started