It can use its attack even when it is on the bench which is brilliant
The simplicity of the style and the background is classic Pokmon , and that lands it a solid place in my top four.
While Paradigm Shift is by no means the primary way most decks using Jace and/or the Oracle empty their library, it is a way to do it and thus it has seen play in Legacy and Vintage, where the Oracle especially is a very common win condition
Training eventually gets you bigger targets, unless Ryu dies or is bounced and loses all its levels
You can add Faceless One to use as your Commander if you can't find a Commander that fits the color you drafted
They also just so happen to be one of the few parts of the game that other major trading card games don't have, and while that does make Pokmon unique, it can also lead to problems like those that came up during the World Championship