It doesn't match the investment
Fellwar Stone may seem less predictable, but in a four-player game, it usually taps for something useful, often one of your key colors
Lots of mechanics benefit from The Jewel, including Clue tokens, Food tokens, morph, transform, craft, and more
Blood Moon says, Nonbasic lands are Mountains, whereas Urborg, Tomb of Yawgmoth says: Each land is a Swamp in addition to its other land types. The key difference here is the words in addition to. If you dont see this wording, like on Blood Moon, then the type change will overwrite whatever types the card had before
Nazgl I love the design on this card as it allows you to play up to nine copies of it in any given deck, a reference to the nine loyal servants of Sauron in The Lord of the Rings