Juzam Djinn has fallen off the wayside, with plenty more powerful creatures released for less mana
To give a quick example, let's assume I wanted to find out a "fair" price for Vigor, I could look on its product page on magiccardmarket to see the following information (this is for the Lorwyn printing): You can see a number of prices, which I'll explain due to the lack of official documentation on the site: From gives you the cheapest price of availability of this card, with at least Excellent condition Foils from does the same, only counting Foils Price Trend is a fictional number, calculated from recent average selling prices per day the graph on the right illustrates recent prices and also shows the Price Trend, which is helpful to see recent developments - this will also let you gauge whether you can trust the previous figures Now, all of these values need to be taken with a grain of salt, as so far, this includes all sellers registered on the site

Magic: The Gatherings push to make its licensed Universes Beyond sets a bigger part of the game has been controversial, but the success of these collaborations means theyre assuredly here to stay
It's not an evergreen tool, though, but rather one that MTG designers call deciduous: a mechanic that they will most definitely use in some sets, but that may not show up in others, and that's usually a two or lower on the Storm Scale