If you extend the best ninja colors from blue and black to red, and pick a Grixis commander, Yuffie can be part of your balanced deck
Green offers a wealth of advantages to building an expensive tribe with a higher mana curve, not least the ability to ramp into the threats you want to play
Finale of Revelation from War of the Spark can threaten to draw a ton of cards in one go
Alongside the new EDH card City of Fire, Mana Crypt also sneakily deals nine damage to you instead of three, which can unexpectedly put you in a bad position
However, others have been printed since, some of which have shown it's age a bit
Grim is basically now one of those few old utility creatures that remain in the cube like the green ramp stuff, Mother of Runes, er