If your tenth permanent enters the battlefield and then a permanent leaves the battlefield immediately afterwards (most likely due to the "Legend Rule" or due to being a creature with 0 toughness), you get the city's blessing before it leaves the battlefield
By those terms, every car you see on the road is a mech, which takes some of the fun out of things
Aside from the far-reaching implications of these modal lands, the new party mechanic (which provides another application for Umara Wizard) promises to add another interesting consideration to deck-building, and landfall is always fun for the weight it adds to every land drop
The card has a clunky mana cost, though one that's easy to circumvent with Gishath, Sun's Avatar
Buying the single saves you money and prevents ending up with piles of unwanted duplicates
The earlier sets in a new generation of the game are never the most desirable