PSA 10 examples of 1st edition Gyarados cards sell between $7,500-$9,500, while PSA 9s fetch $1,000 on average
The different grading levels (in Europe) are: Near Mint Excellent Good Light Played Played Poor If youd like to get an idea of how much grading affects a cards value, take a look at the listings for your card on Cardmarket
It feels like something that should only be possible by a wizard who lives in a volcano, rather than a diligent team forensically checking each card for mistakes on their monitors
Four damage for 1 mana is a lot
(5/1/2007) If an effect of a spell or ability an opponent controls causes Quagnoth to be discarded, but Quagnoth moves from your hand directly to the Exile zone (due to Leyline of the Void, for example), the ability will trigger from that zone
I run it in a Naya Dinosaurs Enrage deck, where its a convenient way to trigger all your enrages effects repeatedly. Ultimately, considering the countless interactions MTG cards can have with one another, divining the true worst card is practically impossible