This has a home in plenty of builds, not least Osgir, the Reconstructor
The Gold Saucer This colorless tapping Town arrives untapped and can be tapped with two to flip and then make a Treasure if you win - not bad anywhere in coin flip and Treasure brews amazing
Vona, Butcher of Magan sports the knight subtype and is in black and white, the two best colors for a Commander deck based on knights, so it became a way to enable these decks, even if the commander itself didnt see all that much play
It gives you two +1/+1 counters of course, but then you can use it to destroy a nonland permanent
The card advantage that Mu Yanling provides is great, along with a boost to Vehicles if you dedicate your deck to that card type
Like Xyris, none of Kasetos variants have a particularly impressive secondary market value