Lands specifically being so simple is a big reduction in mental load, and while there are technically differences between the back (Plain ETB tapped vs ETB tapped unless you pay 3 life), it's not enough that I would (for eg) only run one of those kinds if the front faces both felt right
Its trivial to control your commander when this triggers which means that you will be getting not only a token but also growing your team significantly
Back when Brawl was first getting going on Arena , Niv-Mizzet Reborn was what you least wanted to face in the queues
This way you had space for more cards
The front of a genuine Pokmon TCG card shouldnt be perfectly smooth to the touch
Out of all these cards, this is definitely the most versatile as it supports every single Zombie archetype in the game, and not just at a bare minimum, it can have a massive impact