If this land becomes a creature but you haven't controlled it continuously since your most recent turn began, you won't be able to activate its abilities or attack with it that turn
Also, like Archaeomancer, it can be used as a combo piece
For instance, I had a friend who always used three-dimensional tokens
If you're up for a bit of negotiation be sure to factor in your time to sort cards and account for duplicates and in the age of Commander, this matters more than if you need to build with 4-card playsets
Omega is an 8/8 Legendary Artifact Robot that requires seven mana to summon - one green, one blue, and five of any color
In general, I agree with the voices that say that Universes Beyond has gone a bit too far, with too many releases and too many crossovers happening