Arguably, it doesnt belong in the 99 either, but some decks really like to sacrifice lands
Effects that end the turn like Time Stop and Obeka, Brute Chronologist are fun because we dont see them terribly often
I think the ultimate is a trap and will only be useful a very small amount of the time, as using the other two abilities will generally be a better way to end the game
Scalpers, as they are referred to, buy massive quantities of limited releases like this, which limits the amount of product that gets into the hands of players who actually want to use them
Mechanically, you could only have one on the battlefield at a time
Stealing your opponents stuff is a tried and true staple of Magic , there has never been a commander that lets you steal multiple creatures with quite as much ease as Nihiloor