Three opponents means you should always have three Robots, Constructs, or Vehicles in your hand , so that you never miss an opportunity to put one directly into play for free
The Walking Dead Secret Lair is somewhat unusual in that it introduces new cards, which a lot of players saw as a bad decision from Wizards
Three mana for two damage with an additional benefit is a rate you're willing to pay for all sorts of cards throughout Magic
Best Simic Token Commanders (Adrix and Nev, Twincasters and Esix, Fractal Bloom) Adrix and Nev, Twincasters is Parallel Lives on a 2/2 with some protection from targeted removal
One was a Rogue Tribal deck (a nod to the main sets party mechanic), and the other was focused mostly on landfall, a mechanic native to the plane of Zendikar
It is also a relatively heavy for a card that isn't a threat