On top of the 10/10 flying body that Ureni comes with, you also have a commander with protection from both white and black, the two colors with the most single-target removal in the game
Landfall MTG Mechanic If a land enters the battlefield under your control, all your landfall abilities will trigger
Now, I am not in those meetings at Wotc, and one could certainly accuse me of extrapolating a bit and making a few assumptions on what WotCs actual agenda is, but at least the idea Im presenting is consistent with the facts
The current version came about because I knew repeated kill would be a strong incentive
It might be more convenient to install multiple apps on one device in advance
Mitsuhiro Arita never misses with his artwork, and Blastoise ex is a perfect example of that