Considering Devastation Tide, this is a fairly simple card that doesn't exist yet. Although, maybe, they wouldn't cost it like this to avoid obsoleting Evacuation, even if it's not strictly better.

There are some subtle spells like this that serve as narrow and expensive answers (for example, coupled with a counterspell) for problems that blue normally can't deal with. It's not particularly exciting if you're playing white and Day of Judgment, but it is something to be treasured by other decks such as green-blue ramp or blue-red combo, especially because it's a unique effect among the other 600+ cards in the format.

Finally, this is part of a flavor cycle with a quote from Bolas, the other two being Definitive End and Lavaquake. It's funny that they are all some sort of board-altering effect, but I think it's fitting for him.