Like most Magic: The Gathering cards, the value of The Speed Demon depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Aetherdrift)
Made using GIMP Texture from: karite-kita-neko.deviantart.co Bar from: shiningbill.deviantart.com/art Symbol from: latios101.deviantart.com/art/N Text from: latios101.deviantart.com/art/s Layout from: shiningbill.deviantart.com/art This is low-res because tradingcardmaker.net/ tends to only allow blanks of less than 300KB (in my experience)
The exact position may vary between cards (remember to check the correct position on a real copy, or an authoritative photo of one), but, if it's missing entirely, the chances are the card is a fake
Who could be a Scrooge with this kind of news
With Thran Vigil out, we can also sacrifice Putrid Goblin to things like Diabolic Intent and Deadly Dispute for free since it will come back into play anyway
In order to accomplish this, R&D has to conserve its resources