Srams ability draws a card when you cast an aura, equipment, or vehicle, so the majority of cards in your deck are functionally cantrips
This last part is perhaps the most relevant to the average Commander player
Its second ability is also very titan-cycle-esque, stating that whenever Blight Titan enters the battlefield or attacks, mill two cards, then incubate X, where X is the number of creature cards in your graveyard
Of course, this City's value is mostly driven by its presence in the Legacy format, where the difference between popping off on turn and turn two can be the difference between winning and losing
Standard only uses two different strong dual land cycles per year, and some more budget options like Gates and gain lands, but with only two years' worth of cards, there just aren't many options