This means, for example, that a Modular creature would come into play without it's +1/+1 counters and then be destroyed by state based effects
On top of the display cards, you also get a few booster packs from the matching set, so you can still enjoy opening new cards to play with
you get a 3 mana bolt that you can then escape later, if you're casting it from your hand, and then when it hits the battlefield it certainly is quite a problem
Why do we even find Bloomburrow so adorable
Most notably, Steel cards have the highest concentration of Resist cards, adding to their already impressive array of defensive skills
It is one of my favourite mechanics so I cram it in where I can but in practice this is not able to compete as a stand alone module and is just there to support +1/+1 counters, infect, energy, and a few other bits and bobs