This was done so the new legendary Spacecrafts can lead decks right out of the box, but the change is permanent and retroactive
Supreme Verdict has more value than other board wipes like Shatter the Sky, because for the same mana value, you get a sweeper that cant be countered, with no downside aside from the restrictive mana cost
However, as you might already know, love can be expensive, much like this card
This deck absolutely dominated the meta game when it was released, and has seen continuous rogue-level play ever since
If heads, prevent all effects of an attack, including damage, done to vigoroth during your opponent's next turn
You'll likely use it as a Counter card over playing him on the field though