Late game, this is a way to dig even deeper to grab that game winning Overrun spell
While Expressive Iteration technically only replaces itself as far as cards in hand are concerned, it's the perfect spell to drop on turn three in a land-light hand, in order to make your land drop for turn and set yourself up for turn four as well
Devoid (This card has no color.) As Corrupted Shapeshifter enters the battlefield, it becomes your choice of a 3/3 creature with flying, a 2/5 creature with vigilance, or a 0/12 creature with defender
This, combined with the fact that there's a lot of competition for Nature's Rhythm's slot in eternal 60-card formats, should help keep its price down, which means that the floor of Nature's Rhythm is likely as a very strong budget-conscious replacement for something like Finale of Devastation
This makes sensethe Gods were a brand new type of permanent, and no one really knew what to expect with them
Sometimes you draw a lot in green, and its best to check yourself before you deck-yourself