If your cancellation is approved a 20% restocking fee will be charged
Lead designer Mark Rosewater rated it 9/10 on his influential Storm Scale, indicating a mechanic which would require a minor miracle to ever be used in a new Standard set
Also with the rising popularity of an eternal format that can use Reserved List cards like Commander, having them be reprinted more often would improve the game's most popular format considerably
There are only a dozen or so other mono-blue ninja cards, and you need more than that to make use of Higure's triggered ability constantly
Elspeth, Storm Slayers Halo Foil variant is going for a whopping $400 right now, but thats actually slightly below market value
So, although you might control a Bear Umbra and benefit from the land untap you cant move it to your own creature to try and trigger it (and the owner will probably not attack if you gain control of it, lets be honest)